
Infectious Diseases
News
Avian influenza
in Indonesia - further human death
(Posted 14/7/06 - Source: Reuters)
A three-year-old Indonesian girl
who died this month has tested positive for bird flu according to tests
by the U.S. Centers for Disease Control and Prevention in Atlanta, a
health ministry official said on Friday. The child's death takes the
number of human bird flu deaths in the country to 41.
Lily Sulistyowati, the health
ministry's spokeswoman, said the toddler had contact with sick fowl, the
usual route of transmission of the H5N1 virus, which is endemic in
poultry in almost all of Indonesia's 33 provinces. There was one dead
chicken in her backyard," she said. Sulistyowati said there was no
information on whether any other members of the toddler's family were
also infected.
Indonesia has seen a steady rise
in human bird flu infections and deaths since its first known outbreak
of H5N1 in poultry in late 2003, and has registered more deaths this
year than any other country. It has the second highest number of human
deaths from bird flu after Vietnam. Indonesia has been criticised for
not doing enough to stamp out the H5N1 virus.
Legionnaires
disease in the Netherlands
(Posted 13/7/06 - Source: Eurosurveillance)
An outbreak
of legionnaires’ disease is occurring in Amsterdam, where 23 cases confirmed
by urinary antigen test were reported between 6 and 13 July 2006, and one
patient has died. Illness onset in the first three cases to be reported was
between 29 June and 6 July. Nineteen cases have been reported in Amsterdam,
and four cases have been reported from other parts of the Netherlands, in
patients who work in Amsterdam.
Epidemiological and environmental investigations were started on 6 July by
the Geneeskundige en Gezondheidsdienst (GGD) Amsterdam (Municipal Health
Service Amsterdam), and collaboration with the RIVM (National Institute for
Public Health and the Environment) began on 10 July. Hospitals and general
practitioners in Amsterdam, and GGDs throughout the rest of the Netherlands
have been alerted, and active case finding to identify patients with
pneumonia that may be caused by legionella infection is ongoing.
Nineteen of
the patients live in different locations throughout Amsterdam, with a
majority living in the eastern part of the city centre, and the outbreak
investigators are working to map the scope of the outbreak.
No source of
infection has yet been found, but samples have been taken from several
installations such as fountains and cooling towers throughout the city. Test
results are expected by 14 July, and some of these installations have been
closed as a precautionary measure.
Yellow Fever - 4
cases in Peru (Posted 23/3/06 -
Source: La Primera)
Four cases of
yellow fever have occured in the cities of Santa Rosa, San
Martín and Palmapampa in the Ayacucho region. The regional department of health
officials declared a red alert. Silvia Saravia, the regional health director,
urges the population and health professionals to remain vigilant regarding
possible further cases. In addition there are plans to initiate a wide-spread
vaccination campaign covering the entire affected area.
BSE in Sweden -
first report (Posted 16/03/06 -
Source OIE)
Sweden has has lost
its status as Europe's only BSE-free country. Swedish authorities notified the
World Organisation for Animal Health (OIE) on the 8th of March that the first
confirmed case of BSE in Sweden had occurred. The diseases was confirmed by 2
refernce laboratories - the Swedish National Veterinary Institute (SVA), Uppsala
and the OIE Reference Laboratory, Veterinary Laboratories Agency (VLA),
Weybridge, United Kingdom. A single cow in a herd of 50 was affected.
Cholera outbreak in Tanzania
(Posted 13/3/06 - Source: Reuters)
New cases of
cholera continue to be reported in Tanzania's commercial capital, Dar es Salaam,
where until Friday 79 patients were admitted to various health centres in the
city. Gaston Makwembe, an information officer for the Dar es Salaam City Council,
said 582 cholera patients were reported at various health centres in the city
since 2 December 2005, six of whom died. He blamed the shortage of water in the
city for the disease's persistence, which has seen periodic outbreaks there and
in other parts of the country because of public consumption of unsafe drinking
water from wells and other sources
Avian influenza –
spread of the virus to new countries (Posted 21/2/06 -
Source: WHO)
The occurrence of the disease in
India, reported on 18 February, is part of a recent pattern of rapid
geographical spread of the virus in wild and domestic birds. India is one of 13
countries that have reported their first cases of H5N1 infection in birds since
the beginning of February. (The 13 countries, listed in order of reporting, are
Iraq, Nigeria, Azerbaijan, Bulgaria, Greece, Italy, Slovenia, Iran, Austria,
Germany, Egypt, India and France.)
On 20 February, Malaysia reported
a fresh outbreak in poultry after having been considered free of the disease for
more than a year.
The situation in these recently
affected countries varies greatly. Most European countries with good veterinary
surveillance have detected the virus in a small number of wild birds only, with
no evidence to date of spread to domestic birds.
In Azerbaijan, detection of the
virus has coincided with die-offs of domestic birds. In Egypt, outbreaks in
domestic poultry have now been confirmed in 10 governorates; deaths have also
been reported in exotic zoo birds. In Iraq, presence of the virus in birds was
found only after the country confirmed its first human case.
In Nigeria, as in India, the
first cases were detected in large commercial farms, where the disease is highly
visible and outbreaks are difficult to miss.
Apart from Iraq, none of the
countries newly affected during February has reported human cases. Iraq has
reported two human cases, both of which were fatal; samples from several other
patients are currently undergoing tests. For human health, experience elsewhere
over the past two years has shown that the greatest risk of cases arises when
the virus becomes established in small backyard flocks, which allow continuing
opportunities for close human contact, exposures, and infections to occur.
All available evidence indicates
that the virus does not spread easily from poultry to humans. To date, very few
cases have been detected in poultry workers, cullers, or veterinarians. Almost
all cases have been linked to close contact to diseased household flocks, often
during slaughtering, defeathering, butchering, and preparation of poultry for
consumption. No cases have been linked to the consumption of properly cooked
poultry meat or eggs, even in households where disease was known to be present
in flocks.
Chikungunya in La
Réunion Island (Posted 17/02/06 -
Source: WHO)
Between 28 March 2005 and 12
February 2006, 1 722 cases of chikungunya have been notified by physicians from
a sentinel network in La Réunion, including 326 cases reported during the week 6
to 12 February. Estimations from a mathematical model indicate that 110 000
people may have been infected by chikungunya virus since March 2005 in La
Réunion, including 22 000 persons during the week 6 to 12 February. During the
first week of February, other countries in the south west Indian Ocean have
reported cases: Mauritius (206 cases) and the Seychelles (1 255 cases).
Chikungunya, a viral disease, is
transmitted to humans by infected mosquitoes, typically Aedes aegypti,
although there may be other competent mosquito vectors. The name, chickungunya,
comes from the Swahili for stooped walk, reflecting the physique of a person
suffering from the disease. The disease has been described in Africa, South-East
Asia, southern India and Pakistan. It occurs principally during the rainy season.
Chikungunya is rarely fatal.
Symptoms appear between 4 and 7 days after the patient has been bitten by the
infected mosquito. A high fever and headache occur, with significant pains in
the joints (ankles, wrists) and can persist for several weeks. The main
preventive measure is to stop the proliferation of mosquitoes by reducing their
breeding grounds.
Meningococcal
disease in Uganda (Posted
10/2/06 - Source: WHO)
From 28 December 2005 to 3
February 2006, 301 suspected cases of meningococcal disease including 23 deaths
have been reported from the districts of Nakapiripirit (258 cases, 19 deaths)
and Moroto (43 cases, 4 deaths) in north-eastern Uganda. Laboratory tests have
confirmed Neisseria meningitis A.
The International Coordinating
Group (ICG) on Vaccine Provision for Epidemic Meningitis Control has provided
250 000 doses of bivalent vaccine for a mass vaccination campaign, as well as 10
000 doses of oily chloramphenicol for case management. The immunization campaign
has started in both districts. Reports of suspected cases in five neighboring
districts are also being investigated.
Avian influenza in Nigeria
(Posted 8/2/06 - Source OIE)
Nigerian
Authorities have officially notified the World Organisation for Animal Health (OIE)
on the 8th of February 2006 of the occurrence of an outbreak of Avian Influenza
in poultry on their territory. According to this report, the outbreak affected a
commercial layers unit kept in battery cages, in the Kaduna state (Jaji
village), in the northern part of the country. Stamping out, quarantine, animal
movement control inside the country, and disinfection of the infected premises
are the control measures undertaken by the Nigerian Authorities so far.
The OIE/FAO reference laboratory
for Avian Influenza in Padova ( Italy ) has characterized the isolate as a
highly pathogenic H5N1 and has further analysed its genetic composition.
Investigations are being carried out in order to define the degree of genetic
homology with the currently known H5N1 strains.
The OIE, together with the FAO,
will take immediate action and coordinate a common response to this event. A
team of experts will be sent to the affected area in order to assess the
situation and provide technical advice to the national Authorities.
Meningococcal
disease in Sudan (Posted 3/2/2006 -
Source: WHO)
From 1-31 January 2006, 136
suspected cases and 15 deaths of meningococcal disease have been reported in six
states of Sudan. The epidemic threshold has been crossed in two administrative
units (Guli in Blue Nile State and Wad el Heleu in Kassala State). One specimen
of cerebral spinal fluid has been found positive for Neisseria meningitidis
serogroup A by latex test. Results from additional specimens sent to the
National Public Health Laboratory in Khartoum are expected shortly.
The Federal Ministry of Health (FMOH)
had established a National Task force including UNICEF, WHO and nongovernmental
organizations. WHO is supporting the FMOH in their field investigations, the
provision of outbreak control supplies, strengthening surveillance as well as in
the assessment of vaccination needs.
BSE in Canadian cattle (Posted
23/1/06 - Source: CFIA)
The Canadian Food Inspection
Agency (CFIA) confirmed bovine spongiform encephalopathy (BSE) in an
approximately six-year-old cross-bred cow born and raised in Alberta. No part of
the animal entered the human food or animal feed systems.
This finding is not unexpected
and was identified through Canada’s national surveillance program, which targets
cattle at highest risk of being infected with
BSE. The program has
tested more than 87,000 animals since Canada’s first BSE case in 2003.
The geographic location and age
of this animal are consistent with the three domestic cases previously detected
through the national BSE
surveillance program and the current understanding of BSE in Canada.
Avian influenza outbreaks
in Turkey (Posted 10/1/06 - Source OIE)
The World
Organisation for Animal Health (OIE), FAO and the EU sent an
expert from the OFFLU (OIE/FAO laboratory network for Avian Influenza) to be
part of the WHO/FAO/OIE/EU/ECDC team currently assessing the situation in Turkey.
According to the
latest information received from the joint team of experts, as of 8 January 2006
a total of 13 AI (H5) outbreaks have been confirmed by virus isolation in 8
provinces (Igdir, Erzurum, Sanli Urfa, Erzincan, Agri, Bitlis, Yozgat, Ankara),
mostly in backyard flocks. Within the Ankara region, AI (H5) virus was isolated
in one wild duck. The official notification of the outbreaks by the Turkish
authorities is published on the OIE website (www.oie.int).
The World
Organisation for Animal Health expresses its concern about the evolution of the
situation of AI outbreaks in Turkey. The OIE is particularly concerned about the
very bad weather conditions in Eastern Turkey that make any technical
intervention very difficult and that also favour a longer survival of the animal
virus in the environment.
Researchers have published
clinical and sequencing details of a unique variant of HIV in a patient who is
resistant to several classes of antiretroviral drugs and who rapidly developed
AIDS, after media reports of a possible new “super-strain” of the virus (Lancet
2005;365:1031-8).
Detailed analysis of the virus
showed that it was resistant to three of the four major classes of
antiretroviral drugs: nucleoside reverse transcriptase inhibitors,
non-nucleoside reverse transcriptase inhibitors, and protease inhibitors.
Viruses usually become less virulent when they acquire drug resistance. However,
the replication capacity of the patient’s HIV-1 was 136% in comparison with a
median of 100% derived from a large number of wild type viruses. This indicated
that despite its multidrug resistance the virus replicated as well as most wild
type, drug susceptible viruses.
Rapid progression to AIDS after
acute HIV-1 infection has been described previously, as has the transmission of
multidrug resistant viruses. However, Martin Markowitz, of the Aaron Diamond
AIDS Research Center at Rockefeller University, New York, and one of the authors
of the case report, said: “The unique feature in this case is the convergence of
two uncommon factors: the transmission of a multidrug resistant HIV-1 variant
and the extremely rapid clinical course to AIDS.” He said that the case was in
the top 0.5% in terms of rapidity of disease if 12 months was assumed as the
duration of his infection.
Viral sequence analysis indicated
that the patient’s virus was subtype B, and the relative homogeneity of the
viral population was consistent with early HIV-1 infection. Phylogenetic
analysis of a nucleotide sequence from the viral pol gene and from 30 newly
infected individuals and five reference HIV-1 strains showed that the viral
sequence of the new case was unique. No match was found on the centre’s sequence
database. “Because of its unique features, this pol sequence is now being
compared with those in the database at the Los Alamos National Laboratory and in
various commercial laboratories with the hope of finding a closely related HIV-1
that might provide an epidemiological link to this case,” the report said.
Treatment options for the patient
are limited: enfuvirtide and efavirenz are the only two antiretroviral drugs
that can provide full activity against his virus. He has been started on a
multidrug regimen, including enfuvirtide and efavirenz. Tracing of his sexual
contacts has also begun.
Suspected myocarditis in
Sri Lanka (Posted
17/03/05 - Source: WHO)
The Ministry of Health, Sri
Lanka, has reported that suspected cases of myocarditis of unknown aetiology in
Badulla and Monaragala districts, Uva province, continue to be detected,
although there appears to be a decline in the number of cases recorded in recent
weeks.
Further field and laboratory
investigations are being performed to identify the aetiology. Control measures
including enhanced infection control are currently being implemented.
A team from the Global Outbreak
Alert and Response Network (GOARN) and WHO is supporting the Epidemiology Unit
of the Ministry of Health by providing additional human resources and technical
support. The team consists of WHO staff from the country and Regional Office for
South East Asia, GOARN partners from the European Programme for Interventional
Epidemiology Training (EPIET); Health Protection Agency/London-KSS Deanery,
United Kingdom; Ministry of Public Health, Thailand (Field Epidemiology Training
Program, Bureau of Epidemiology); National University Hospital, and National
University, Singapore; the National Centre for Immunization Research and
Surveillance of Vaccine Preventable Diseases, Australia; and Centres for Disease
Control and Prevention (CDC), Atlanta, USA.
Avian influenza in Viet Nam
(Posted 11/3/05 - Source: WHO)
The Ministry of Health in Viet
Nam has today confirmed an additional 10 cases of human infection with H5N1
avian influenza. Today’s report is an official notification to WHO of some
recent cases, whose infection was detected in March, combined with retrospective
notification of older cases, some of which date back to late January. Of these
newly reported cases, three have been fatal.
This notification of cases
follows new reporting procedures established within the Ministry of Health in
collaboration with WHO staff in Hanoi. Today’s official report brings the total
number of laboratory-confirmed cases in Viet Nam, detected since mid-December
2004, to 24. Of these, 13 have been fatal.
Full information on new cases,
including those that may be closely related in time and place, is critical to
ongoing assessment of the pandemic risk posed by the H5N1 virus. Rapid field
investigation of each new case is essential to ensure timely detection of
clusters of cases occurring in family members or health care workers. Such cases
can provide the first signal that the virus is altering its behaviour in human
populations and thus alert authorities to the need to intervene quickly.
Plague in the Democratic
Republic of the Congo (Posted:
4/03/05 - Source: WHO)
The multidisciplinary team has
reported a total of 57 cases (54 suspect cases, 3 probable cases), including 16
deaths in Zobia, Bas-Uélé district, Oriental province. These figures are based
on the current situation and a retrospective analysis of cases. With the
exception of 2 cases of the septicaemic form of plague, all recorded cases are
pneumonic plague.
Out of 18 specimens tested,
preliminary laboratory results from Kisangani Provincial Laboratory confirm 10
positive specimens by direct examination (sputum).
Contact tracing and follow up of
125 contacts is continuing. The team is providing support to the clinical
management of cases in Zobia and Médecins sans Frontières - Belgium are
constructing 2 isolation centres. Social mobilization activities are taking
place in surrounding areas.
Polio in Sudan and Saudi
Arabia (Posted 7/01/05 - Source:
WHO)
A current polio outbreak in the
Sudan, caused by an imported type 1 poliovirus, continues to escalate. 105 cases
have now been confirmed from 17 of the country's 26 states (as of 6 Jan 2005),
since the 1st case was identified in Darfur in May 2004. In addition, a
2-year-old Sudanese girl from Dar Elneeem district, Port Sudan, experienced
onset of paralysis on 6 Nov 2004, 1 day after arriving in Saudi Arabia from the
Sudan with her family. Although genetic data on the virus isolated from the case
in Saudi Arabia are not yet available, almost all other viruses identified in
2004 in the Sudan are closely genetically related to polioviruses originating in
northern Nigeria and Chad.
The escalating outbreak in the
Sudan and the polio case in Saudi Arabia further underline the high risk posed
to polio-free areas by the continuing epidemic in west and central Africa. This
risk is compounded by the growing vulnerability of populations to polio globally,
following the cessation of preventive polio immunization campaigns in many
polio-free countries in 2002-2003. Children globally will continue to be at risk
of polio from such importations until the disease is eradicated everywhere. The
Sudan is continuing its intensification of polio immunization campaigns, with
support from WHO, UNICEF and other polio partners. Following 4 mass immunization
campaigns in the Darfur region between July and November 2004, and 2 nationwide
campaigns in October and November 2004, planning is currently under way for the
next rounds of nationwide immunization campaigns commencing on 10 Jan, 25 Feb
and late March 2005.
Indonesia: cases of tetanus after tsunami
(Posted 7/01/05 - Source: ProMED mail)
Hospital staff in the public
hospital in Banda Aceh have reported at least 5 cases of tetanus in victims of
the recent tsunami. Simultaneously they have drawn attention to the shortage of
tetanus immune globulin in the area.
Typoid fever epidemic in Gabon
(Posted 7/01/05 - Source: Reuters)
An unprecedented outbreak of
typhoid fever has been confirmed in the northern rain forests of Gabon, causing
one death so far, national radio announced on Friday. Around 50 cases of the
water-borne disease have been registered over the past month in Oyem, a town of
35,000 people located near the northern border with Equatorial Guinea and
Cameroon, following repeated breakdowns of the local water supply system. Health
officials told the radio that cases had also been noted in various other towns
in the Grand Nord region, which is home to 110,000 people, notably in Minvoul
and Mitzic. The only fatality so far was registered in Oyem, which lies 411 km
northeast of the capital Libreville.
"This is the first typhoid fever
alert in the region and in Gabon," Julien Meye, a doctor at the endemic diseases
service in Libreville, told IRIN. He said the epidemic had broken out several
months after a deterioration in the supply of drinking water in Oyem, where the
disease first appeared. Meye said the authorities were launching a massive
information campaign in primary schools in the area to help children learn how
to prevent catching Salmonella typhi, the enteric pathogen which causes typhoid.
Yellow fever in Guinea
(Posted 7/01/05 - Source WHO)
WHO has received reports of an
outbreak of yellow fever in the region of Faranah, in the north of the country.
Six cases have been reported from 19 October to 28 November 2004 and have been
laboratory confirmed by the WHO Collaborating Centre for Yellow Fever, the
Institut Pasteur, Dakar, Senegal.
A team from the Ministry of
Health (MoH), Guinea and WHO quickly investigated the first cases and
surveillance has been intensified. The MoH with WHO support organized a yellow
fever mass vaccination campaign in December 2004 to control the disease spread
in this region. No additional cases have been reported so far.
Indonesia hit by tetanus
outbreak (Posted 5/01/05 - Source:
iafrica.com)
A tetanus outbreak is killing
Indonesians who survived last week's tsunamis as many had not been immunised
against the potentially fatal infection, a South African humanitarian
organisation said on Wednesday.
"There is a full-blown outbreak
and people have started to die" said Global Relief spokesperson Murray Louw in a
statement. The organisation said 12 of their volunteers, including doctors,
nurses, engineers and search and rescue personnel, arrived in Indonesia's Banda
Aceh on Sunday, near the epicentre of the earthquake which caused the tsunamis.
Suspected cases of
cholera in Mozambique (Posted
5/01/05 - Source: Agencia de Informacao de Mocambique)
13 suspected cases of cholera
have been notified in the central Mozambican province of Manica over the past
week, according to the provincial chief doctor. Firmino Jaqueta said that the
victims, suffering from the diarrhoea and vomiting, received medical treatment,
and no deaths have been registered.
These cases have not yet been
confirmed as cholera: that will depend on laboratory analysis. The head of the
Epidemiology Department in the Ministry of Health, Avertino Barreto, told
reporters that analyses were being undertaken, not only on samples from Manica,
but also to determine whether cases of diarrhoea reported in Maputo, and in the
town of Boane, 30 kilometres outside the capital, are caused by cholera.
Cholera epidemics have occurred
regularly in Mozambique during the rainy season over the past few years. The
poorer suburbs of the major cities, suffering from lack of adequate sanitation
and defective water supplies, tend to be the areas worst hit.
First disease outbreaks reported after tsunami
(Posted 2/01/05 - Source: news.com.au)
The first outbreaks of
communicable diseases were now being seen in areas hit by last Sunday's (26 Dec
2004) killer waves in Asia, a senior WHO official said today, 2 Jan 2005. "There
are increasing reports of diarrheal disease outbreaks coming from displaced
persons' settlements in Sri Lanka, in India," said David Nabarro, the top
official at the WHO dealing with humanitarian crises. However he said the
initial signs were not cause for alarm, although preventive measures and
treatments must continue. "They are not causing us alarm because we expect
this," he said. "What we need to do is to make sure that we continue to
distribute all rehydration salts and treatment for diarrhea and we continue to
do our work in sanitation and water supplies." The death toll from the
catastrophe has now edged towards 126 000.
New Zealand -
outbreak of norovirus (Posted 28/12/04 - Source: Lois
Watson/stuff.co.nz)
Yesterday seven people were seen by staff
at the emergency department with the symptoms of norovirus that causes severe
vomiting and diarrhoea.
Norovirus swept through Princess Margaret
Hospital earlier this year, closing several wards and infecting 200 patients and
staff. It has now hit Christchurch Hospital, forcing the temporary closure of
two wards to new admissions and the introduction of strict infection control
measures. Yesterday, a third ward – ward 30 – was quarantined as two more
patients fell ill with suspected cases of norovirus.
Dr Steve Chambers, the hospital's clinical
director, infectious diseases control, said there had been no new cases of
norovirus in ward 28 but there had been one further case in ward 27. In a
worrying development, the ED was seeing an increasing number of people with
vomiting and diarrhoea.
Healthy people who contracted norovirus
normally recovered within 48 hours but the bug can be more harmful to children,
elderly and the infirm.
Russia: outbreak of hepatitis A in Murmansk region
(Posted 27/12/04 - Source: ProMED mail)
The city of Apatit in the
Murmansk region is experiencing a serious outbreak of hepatitis A. The first
patients were admitted to the hospital 2 months ago. At the present time, 130
people in the city of Apatit have been diagnosed with hepatitis A. The number is
increasing day by day, and many children are among the infected. Epidemiologists
are suggesting that water is the source of the outbreak. A regulation improving
the chlorination of water supplies was issued recently, but so far this measure
has not produced the expected result. Although physicians regard water as the
source of the outbreak, infection is spreading geometrically by contact. Yuriy
Evdokimov, the Mayor of Murmansk, is appealing to the population to observe
simple rules such as careful hand-washing and avoidance of visits to neighbors/relatives
in Apatit. If these simple rules are not observed, emergency measures will be
implemented and a state of quarantine will be declared in the city of Apatit.
The officials had allocated 4.5 million rubles [USD 162 000] for urgent
vaccination of the population. According to the Chief of the City Health
Department, several vaccination centers are being opened throughout the city.
China: increased
efforts to contain brucellosis (Posted
18/12/04 - Source: Xinhua News Agency)
Chinese Ministry of Health said
in Beijing Friday that China faces a "serious" brucellosis epidemic and the
country is scaling up efforts to curb it from spreading further. "China reported
5,753 human cases of brucellosis in the first half of 2004, which is close to
the total number of reported cases last year," the ministry said in a press
release. "The situation is stark."
Brucellosis is an infectious
disease caused by bacteria of the genus Brucella. These bacteria are spread
primarily among animals, including sheep, goats, cattle, deer, pigs and dogs.
Humans become infected by coming in contact with animals or animal products that
are contaminated with these bacteria.
In humans, brucellosis can cause
a range of symptoms similar to the flu and may include fever, headache, back
pain, and physical weakness. Severe infections of the central nervous systems or
lining of the heart may occur. Brucellosis can also cause long-lasting or
chronic symptoms that include recurrent fevers joint pain and fatigue.
The Ministry of Health noted that
it has issued a notice together with the Ministry of Agriculture, ordering local
health and agricultural departments to take rigorous quarantine and disinfecting
measures, and conduct strict animal cull on sick livestock to halt the spread of
the disease.
Sudan's polio outbreak
raises alarm
(Posted 15/12/04 -
Source: R. Thibodeaux/VOANews)
Officials from the World Health Organization (WHO) say the
number of confirmed cases of polio in Sudan has made a dramatic rebound in a
country that had been declared polio-free three years ago. Polio has surged to
the top of their list of concerns after a child in the town of Kass was
paralyzed by it six months ago.
Since then, World Health Organization officials
say the number of confirmed cases of polio-induced paralysis in Sudan has soared
to 54. Because paralysis occurs in only one in 200 cases, health experts say
there is a high probability that more than 10,000 Sudanese have been infected
with the virus, prompting several U.N. aid agencies to issue repeated warnings
that Sudan is in the midst of a massive outbreak.
Typhoid fever in Democratic Republic of the Congo
(Posted
15/12/04 - Source: WHO)
WHO has received reports of a significant, ongoing
outbreak of typhoid fever in Kinshasa. The cases have occurred in the suburbs of
Kimbanseke, Kikimi, Masina and Ndjili which had already been affected by an
important outbreak of E.coli in May 2004.
As of 13 December 2004, a total of 13 400 cases were
reported. Between 1 October and 10 December 2004, 615 severe cases with
peritonitis, with or without perforation, including 134 deaths (case fatality
rate, 21.8%) have occurred. 5 out of 32 samples tested positive for S. typhi. Very poor sanitary conditions and a lack of drinking water
have been reported in these areas. A crisis committee has been established to
contain the outbreak and is carrying out health education activities and
distributing medicine.
Outbreak of Q
fever in South Australia (Posted
14/12/04 - Source: ABC Online)
South Australia is dealing with its largest outbreak of Q
fever in more than a decade. It has been confirmed that 9 farmers in the state's
mid-north have the disease, and there are another 6 suspected cases.
USA: Case of bubonic
plague in Colorado (Posted
11/12/04 - Source: ABC Online)
A 66-year-old Pueblo man died this week from bubonic
plague, the Pueblo City-County Health Department announced Friday. The man
reportedly died Wednesday in a local hospital after being infected while rabbit
hunting recently in Park County.
The case was the first plague-related death in Colorado
since 1999, and the state's third case this year. Since the first human case was
reported in 1957, Colorado has reported 50 cases with 8 fatalities. The state
averages two cases per year. In Colorado, plague-infected animals are most
likely to be found in the foothills and mountains. Most human cases occur in
summer and early fall months.
Cholera in Nigeria
(Posted 10/12/04 - Source WHO)
On 3 December 2004, WHO received reports from the Nigerian
Federal Ministry of Health of a total number of 1616 cases of cholera and 126
deaths. Kano State reported 1316 cases and 76 deaths (case-fatality rate, 5.8%)
between 15 October and 23 November 2004 and Edo State reported 300 cases and 50
deaths (case-fatality rate 16.7%) from 16 September to 18 November 2004. In both
states, Vibrio cholerae was laboratory confirmed.
In Kano State, 20 local government areas have been affected,
with the case-fatality rate highest among people aged under 2 years and over 60
years. While there are widespread water shortages in metropolitan local
government areas, many of the water sources that do exist are not safe.
WHO assisted the Federal Ministry of Health with surveillance
activities and supplies of antisera. Médecins Sans Frontières has also been
assisting control efforts in Edo State. Cases appear to be decreasing in both
states.
United Kingdom: recent cases of variant Creutzfeldt Jakob
disease (Posted 6/12/04 - Source:
Dept. of Health UK)
The Department of Health has issued the latest information
about the numbers of known cases of Creutzfeldt Jakob disease. This includes
cases of variant Creutzfeldt Jakob disease (vCJD) - the form of the disease
thought to be linked to BSE. Deaths from definite vCJD (confirmed): 106, deaths
from probable vCJD (without neuropathological confirmation): 39, deaths from
probable vCJD (neuropathological confirmation pending): 2.
Increase in mumps cases in England and Wales in 2004
(Posted 25/11/04 – Source: Eurosurveillance / HPA)
So far in 2004, 3696 cases of mumps have
been confirmed in England and Wales (weeks 1-39), compared with a total of 3884
cases between 1999 and 2003. All regions have reported cases in 2004 and all
except two have already had more cases this year than in the whole of 2003. Of
all cases this year, 78% (2886 cases) were reported in young people aged 15-24.
Immunisation against mumps was introduced
in England and Wales in October 1988 as a component of the measles, mumps and
rubella (MMR) vaccine and offered routinely to all children aged 12 to 15
months. A second dose of MMR vaccine at pre-school age was introduced in October
1996. Before the introduction of MMR in 1988, mumps was not notifiable and
surveillance was based on laboratory reports. Since 1989, mumps has been
notifiable and since late 1994, the facility to test saliva for IgM has been
available to family doctors.
Following the introduction of MMR, the
incidence of mumps decreased rapidly until 1997. Since then the number of
confirmed cases has increased. In 2003, there was a rise in notifications which
has continued throughout 2004, with further increases in the numbers of
confirmed cases.
Democratic Republic of Kongo: acute typhoid fever kills 16
(Posted 23/11/04 – Source: ProMED mail)
16 people have died of an acute form of
typhoid fever, and 144 others have become infected in recent weeks in the
Democratic Republic of the Congo (DRC), a medical source in the capital,
Kinshasa, told IRIN on Mon 22 Nov 2004.
Dr. Miandolo Miakala, a medical inspector,
said. "There is a 9 percent death rate, 16 people among the 150 cases that we've
recorded in our hospitals in Kinshasa," he added. Miakala said the 1st cases of
the outbreak were recorded in early October 2004.
The WHO in Kinshasa has classified the
situation as an epidemic. "We are sending a team on the ground to conduct tests,
determine the causes, and map out the hot spots of the epidemic," Dr. Edmond
Magazini, the WHO head for Kinshasa, said.
European Influenza
Surveillance Scheme database suggests west-east spread of influenza across
Europe (Posted 18/11/04 - Source: Eurosurveillance
Weekly)
An analysis of data collected by
the European Influenza Surveillance Scheme during the past 5 winters (1999 to
2004) reveals a possible west-east spread of influenza across Europe. In 3 of
the 5 winters (2003/2004, 2002/2003, 2001/2002), the analysis suggests that
there was west-east spread and during one of these seasons (2001/2002) there was
also a south-north spread .
More detailed mapping analyses are needed to confirm these findings, and EISS
will initiate a European Mapping Project, based on a collaborative mapping
project between Germany and the Netherlands, to further explore these questions
and to improve the presentation of influenza activity each winter. The current
objective is to provide this new mapping data on the EISS website during the
2005/2006 season.
The analysis also found that clinical activity (usually cases of influenza-like
illness, but occasionally cases of acute respiratory infection) reported by
sentinel physicians and collected by EISS is a valid indicator of influenza
activity and that, for Europe as a whole, increased influenza activity lasts for
10 to 22 weeks (2 to 5 months) each season.
The long period of increased influenza activity and the possibility of a
west-east spread may have important consequences for influenza pandemic planning
in Europe. For example, these findings could help with the planning and
efficient allocation of resources (such as antivirals and vaccines) in Europe
before and during a pandemic.
Suspected second case of BSE in the USA (Posted
18/11/04 - Source: Associated Press)
A second case of BSE may have turned up in the United States but the suspect
animal has not entered the food chain, Agriculture Department officials said
Thursday. The officials released few details and refused to say where the
possibly diseased animal was found. They said it would be four to seven days
before more could be confirmed.
The possible case comes 11 months after the United States had its first case
of mad cow disease. Japan and other countries are still maintaining bans against
U.S. beef as the result of the earlier case.
Thousands of animals have been tested under new screening procedures that
took effect June 1 to address complaints that too few animals in the United
States are tested for the disease. The mad cow screening programs used by the
government were developed by Bio-Rad Laboratories of Hercules, Calif., and have
been used in Europe for a number of years.
In the only confirmed U.S. case, a Canadian-born Holstein was found to have
been infected, but just that one case caused Japan and more than three dozen
other countries to refuse U.S. beef.
England:
emergency vaccinations for mumps offered in Kent (Posted
16/11/04 - Source: BBC News)
Dr Mathi Chandrakumar, director
of the Kent Health Protection Unit, announced a mumps vaccination program, after
cases rose from 39 last year [2003] to 113 so far in 2004. Dr Chandrakumar said
the rise was not an epidemic, but protection was needed. Health officials are
targeting up to 30 000 at-risk teenagers at 8 tertiary education sites.
Dr Chandrakumar told BBC South East Today: "We don't need to be worried as long
as this campaign is successful, and we can prevent large numbers of cases. We
know it works, because, when we had an outbreak in the University of Kent, we
carried out a campaign, and we stopped it in its tracks; we did not have any
further cases."
Dr Chandrakumar said outbreaks were occurring in people too old to have been
offered measles, mumps, and rubella (MMR) jabs routinely as children. The UK MMR
program only started in 1988. Dr Chandrakumar said the vaccination was "perfectly
safe" and did not have any serious side effects.
Kent University completed a round of immunizations for new students at the start
of term in late October 2004. Other UK universities are also launching mass MMR
vaccinations to stem the mumps threat.
Encephalitis
cases in Uttar Pradesh, India (Posted
7/11/04 - Source: Times News Network)
Disturbed by the rise in the death toll in
neighboring Uttar Pradesh, the Delhi government has asked 2 hospitals to remain
alert for the "mysterious disease" identified as Japanese Encephalitis. The
disease, that has so far caused 92 deaths, is a mosquito-borne viral infection.
Delhi health minister, Yoganand Shastri, on Tuesday [26 Oct 2004] directed the
health department to take due precautions against the infection.
2 government hospitals, Kalawati Saran and Guru Tegh Bahadur, have been alerted,
even while authorities confirmed that no such cases have been reported in Delhi
so far.
Health department officials will be meeting with officials from the Union health
ministry and the Indian Council for Medical Research on Wednesday [27 Oct 2004],
asking for guidelines on the issue. "We do not have a very clear idea about the
disease. We will ask the ministry to issue guidelines, and the directorate of
health services will implement them accordingly," said S.P. Aggarwal, principal
secretary (health).
According to news reports, the death toll in UP's Baghpat and Saharanpur areas
has gone up to 92. Saharanpur district was the worst affected, accounting for 40
deaths so far. A few deaths were also reported from Moradabad, Noida, and
Ghaziabad districts.
West Nile virus
Activity - United States Human Cases
(Posted 5/11/04 - Source: MMWR)
During the period Wed 27 Oct to Tue 2 Nov 2004, a total of 10 cases of human
West Nile virus (WNV) illness were reported from 8 states (Arizona,Georgia,
Iowa, Michigan, New Mexico, Ohio, Oklahoma, and Pennsylvania).
During 2004, 40 states and the District of Columbia (DC) have reported 2241
cases of human WNV illness to CDC through ArboNET. Of these,710 (32 percent)
cases were reported in California, 381 (17 percent) in Arizona, and 276 (12
percent) in Colorado. A total of 1295 (59 percent) of the 2211 cases for which
such data were available occurred in males; the median age of patients was 52
years (range: 1 month to 99 years). Date of illness onset ranged from 23 Apr to
21 Oct 2004; a total of 76 cases were fatal.
Typhoid Fever in Russia (Moscow) (Posted
5/11/04 - Source: ProMed-mail)
For the 1st time in some years,
cases of typhoid have been reported in Moscow among permanent residents of the
city. Earlier in 2004, typhoid fever was observed among natives of Central
Asia living in Moscow.
In July 2004, Moscow's main state health officer, Nikolay Filatov, reported that
in Moscow in the first half of 2004, 27 cases of disease caused by the typhoid
bacillus were reported, as compared to 12 cases during the same 6-month period
in 2003. The majority of cases of typhoid fever in Moscow were imported from
other regions. - Natalia Pchenithnaia
E. coli O157
outbreak in North Carolina (Posted 4/11/04 - Source: Newsobserver)
Health investigators are looking
into whether 5 of at least 24 people stricken in an E. col_ O157 outbreak were
infected at the state fair in Oct 2004 after finding they were all infected by
the same strain.
A 6th victim who also attended the fair in Raleigh, NC was found to have a
different strain of the bacterium, but health officials said Thu, 4 Nov 2004,
that they think the case is related.
At least 4 cases of the E. coli infection occurred coincidentally to the fair
outbreak, investigators said. They were 2 people in Mecklenburg County who got
sick before the fair opened and a parent and child who live on a farm. "It's
beginning to tighten it up," said Dr. Jeffrey Engel, state epidemiologist. "Every
day we get more information. If we can get more DNA types that match the 5
and they all had fair contact, we almost have a closed case. But we have to wait
for results."
By Thu, 4 Nov 2004, state health officials were investigating 38 cases of_E.
coli_ infections. Engel said 75 percent of cases involved children. 3 youngsters,
including a 13-year-old girl from Moore County and a 2-year-old boy from Wilson,
had developed hemolytic-uremic syndrome.
The number of new cases being
reported to state officials has begun to taper off, Engel said, and secondary
outbreaks involving human-to-human transmission have not appeared.
SARS early warning system in China
(Posted 4/11/04 - Source: Reuters)
China's capital, Beijing, has imposed an
early-warning system for infectious diseases, anticipating a possible return of
the deadly SARS virus as winter sets in, the Beijing Morning Post said on Friday.
The system divides infectious disease outbreaks into four classes of
magnitude, with different responses to be put in motion for each. Class one, or
severe outbreaks, covered the infection of 100 or more people by SARS or any
other infectious disease and contagions that expand by more than 20 percent in
two months, the newspaper said.
Three public hospitals, including Ditan Hospital, which handled many of
Beijing's SARS cases in last year's outbreak, and one military hospital had been
designated as treatment centers for class one and two outbreaks.
In the last two weeks, China has issued emergency instructions to hospitals
nationwide to isolate patients suffering from severe respiratory diseases and
banned the cooking and selling of civet cat, an animal considered the primary
source of last year's SARS epidemic.
Severe Acute Respiratory Syndrome emerged in China's southern Guangdong
province in November 2002 and was soon spread by travelers worldwide. The
disease eventually killed 800 people around the world, 300 of them in China, and
infected around 8,000, dealing a severe blow to several Asian economies. Nine
people were confirmed infected with SARS in April this year in Beijing and Anhui
province and one died.
Kyrgyzstan: hepatitis A outbreak in Bishkek and Osh
(Posted 4/11/04 - Source:
ProMed-mail)
A 3-fold increase in the
incidence of hepatitis A has been recorded in Bishkek. According to the Bishkek
epidemiological center, an increase in hepatitis A cases was 1st observed at the
beginning of October 2004 and has continued to increase up to the present. 97
cases were registered in Bishkek alone during the past week [final week of
October 2004], which is 3 times the number registered last year [2003], a total
of 34 cases for one week in 2003. Health officials are predicting a further
increase in case number.
A hepatitis A epidemic is also seriously affecting the southern part of
Kyrgyzstan in the Osh region. The number of hepatitis A cases registered between
August and November 2004 has reached a figure of 1874, of whom, 1593 (or 85
percent of the cases) are children under the age of 14 years. According to
epidemiologists, the peak of the seasonal rise in hepatitis A coincides with
long-term trends.
West Nile virus cases in
Canada (Posted 3/11/04 - Source:
Public Health Agency of Canada)
The total number of probable and
confirmed human cases of West Nile virus infection in Canada remains unchanged
since Wed 13 Oct 2004 at 29: Alberta 2 cases, (one case travel-related);
Manitoba 3 cases (2 travel-related); Ontario 13 cases (2 travel-related); Quebec
one; Saskatchewan, 10 cases. No deaths have been reported.
NIAID
Launches Program to Improve Medical Tools Against Emerging Infectious Diseases
(Posted 2/11/04 - Source: Infection
Control Today)
The National Institute of Allergy
and Infectious Diseases (NIAID), part of the National Institutes of Health
(NIH), has awarded 14 contracts totaling more than $73 million to fund the
Large-Scale Antibody and T Cell Epitope Discovery Program, an initiative aimed
at quickly identifying the regions of selected infectious agents that elicit
immune reactions. The study of these epitopes, promises to uncover targets for
new and improved vaccines, therapies and diagnostic tools against potential
bioterror agents as well as emerging/re-emerging infectious diseases such as
West Nile virus and influenza. NIAID will make information on each newly
identified epitope freely available to scientists through a searchable online
database currently under development.
A research team at the Oregon Health & Science
University (OHSU) will focus on tuberculosis (TB) in a search for proteins that
activate the body's immune response to emerging infectious diseases, according
to a November 1 OHSU press release.
OHSU funding for the project comes from the
Large-Scale Antibody and T Cell Epitope Discovery Program, a five-year, $4
million contract from the National Institute of Allergy and Infectious Disease (NIAID),
part of the National Institutes of Health. NIAID is investing $73 million in
grants to promote research into the immune system response with funds being
distributed to 10 U.S. institutions and three in Europe.
The OHSU team will focus on tuberculosis and will
use cells from TB patients whose immune response has been able to keep the
disease under control. The goal is to use this information to help create TB
vaccines that can provide the same protection to others.
Dengue fever epidemic in Chinese province under control
(Posted 30/11/04 - Source: ProMed-mail)
The dengue fever epidemic in Cixi,
a city of east China's Zhejiang Province, has been brought under control, the
Zhejiang Provincial Health Department announced on 27 Oct 2004.
To date, 80 of the 83 dengue fever patients detected in Zhejiang have been
discharged from the hospital. The remaining 3 are in stable condition, but still
under medical quarantine.
The No. 1 People's Hospital in Ningbo City, Zhejiang, reported a suspected
dengue fever case in Xiaolin Township of Cixi on 3 Oct 2004. The patient was
confirmed to have the fever the following day. By 14 Oct 2004, 83 dengue cases
were reported in the city. The disease did not spread to the medical workers
helping to treat the patients.
Epidemiological Situation of Hantavirus in Brazil
(Posted 26/10/04 – Source: Pan American Health Organization (PAHO))
Up to 5 September 2004, 85 new cases of
Hantavirus were confirmed in Brazil as Hantavirus Cardiopulmonary Syndrome (HCPS).
The number of cases reported to date for this year is equivalent to the total
number of cases reported for 2003.
These 85 cases were detected in 10 (37%)
of the Brazilian states, with only the northeastern region not registering cases.
Nearly 60% of the cases were detected in Minas Gerais and the Federal District.
The geographical spread of the disease is limited to 45 areas or municipalities
of transmission, or 0.8% of the total number of Brazilian municipalities

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