October 2005
All data as at 11 October 2005
PolioSitRepOctober2005ENG.pdf
PolioSitRepOctober2005FR.pdf
Headlines
* Expert group recommends faster, more aggressive response to polio
outbreaks: At its 11-12 October meeting in Geneva, the Advisory Committee
for Polio Eradication finalized policy recommendations for outbreak responses.
Major recommendations to countries include: conducting a large immunization
response within four weeks of confirmation of a case, conducting at least three
house-to-house immunization campaigns 4-6 weeks apart, and using monovalent
vaccines.
* There are now more polio cases in re-infected countries than in
endemic ones: for the first time ever, in 2005, the number of cases in the
re-infected countries is higher than in the endemic countries (796 cases versus
552 cases respectively, as at 11 October). This reflects both progress in
endemic countries and the great vulnerability of polio-free countries where low
routine immunization coverage puts children at risk.
* Indonesia outbreak continues: the country's largest-ever
recorded polio outbreak expanded in central Java, east Java, and Sumatra. The
country completed its second NID at end September. Surrounding countries are
increasing immunity levels and vigilance.
* US$75 million urgently needed by November: Funds are needed to
ensure implementation of immunization activities in the first quarter of 2006.
The US$75 million is part of a US$200 million funding gap for 2006.
* Polio in Somalia: three cases of polio have been confirmed in
Mogadishu, the latest case with onset 21 August. The wild poliovirus isolated
from the cases is closely related to virus in Yemen.
Priority countries
Nigeria
* Nigeria is the greatest risk to the overall global eradication effort.
The country accounts for 36% of global cases, and has 13 times more cases than
the endemic country with the next most cases, India (as at 11 October).
* A Technical Advisory Group meeting held in September 2005 noted recent
progress made (2005 cases down 21% compared with cases as at 11 October 2004).
The expert group recommended that Nigeria conduct four supplementary
immunization activities (SIAs) in the northern states during the first six
months of 2006 and consider the use of monovalent OPV in early 2006.
India
* In India, strong progress continues to be achieved. The number of cases
reported is just over half that for the same period in 2004 (37 compared with
68, respectively), despite intensified surveillance.
* Monovalent OPV type 1 (mOPV1) has been used in at least three rounds in Bihar
and key areas of Uttar Pradesh and Mumbai. Initial surveillance data from these
areas show promising results.
* Monovalent OPV type 3 (mOPV3) will be used in selected districts from
November, to eliminate India's last type 3 virus.
Pakistan
* In 2005, 18 cases have been reported, compared with 31 for the same period in
2004.
* mOPV1 was used for the first time in Pakistan during the 27-29 September
campaign. No type 3 polio has been found in Pakistan in 2005.
* The primary risk to Pakistan's polio eradication effort remains hampered
access due to insecurity in some areas of the country, most notably the tribal
areas bordering Afghanistan in North West Frontier Province, Balochistan, and
areas in southern Punjab and northern Sindh. Intensive advocacy with local
leaders to increase access to under-immunized communities and improve SIA
quality is helping to solve this issue.
Afghanistan
* The primary risk to Afghanistan's polio eradication effort is difficulty in
accessing children due to insecurity in Southern Region. All four type 3 cases
this year have occurred in this region.
* President Hamid Karzai officially launched the latest round of NIDs on 5
September.
Egypt
* Egypt's last polio virus was detected from an environmental sample collected
in January 2005.
* Egypt conducted its third NID round with mOPV1 on 25 September.
Niger
* Niger has confirmed 4 polio cases in 2005, compared with 20 cases for the same
period in 2004. The most recent case was a type 3 virus (the first since
September 2004) in Tahoua, with onset of paralysis on 14 July.
Indonesia
* The country launched its 2nd round of NIDs on 27 September using tOPV. The
activity was officially inaugurated by Indonesia's President Susilo Bambang
Yudhoyono in South Sumatra. The campaign targeted 24.6 million children and used
trivalent OPV. To date, 264 cases have been reported in 7 provinces. mOPV has
been recommended for use in future rounds.
* Other countries in Asia, including the Philippines and Vietnam, are holding
immunization campaigns to prevent importations of polio from Indonesia.
Other countries/regions
West and central Africa
* The epidemic which began in 2003 is being curbed. Only 5 cases have been
reported (outside polio-endemic Nigeria and Niger), in Cameroon, Chad and Mali
in 2005. This is compared to 57 cases in 8 countries for the same period in
2004.
Ethiopia and Horn of Africa
* Three cases have been confirmed in Mogadishu, Somalia, with the latest
onset of paralysis on 21 August. Somalia has conducted six NIDs this year, with
the latest in the Mogadishu area 20-22 September and in the rest of the country
28-30 September.
* In Ethiopia, the outbreak continues to geographically expand, with 17 cases
now confirmed, two of which are near the border with Somalia.
Angola
* With 7 cases confirmed in Angola, the country held its third round of NIDs on
30 September.
Yemen
* Yemen has the most cases of any country with importations in 2005 (472 cases
as at 11October). The country has conducted three rounds of SIAs using mOPV1,
and the outbreak is considered to be under control.
* Yemen will conduct its next NID round in November.
The state of polio eradication in 2005
* Commitment to polio eradication is at its highest ever thanks to
visible progress in the hardest endemic areas and powerful new tools like
monovalent oral polio vaccines.
* There are 6 countries with endemic polio (Nigeria, India, Pakistan,
Niger, Afghanistan and Egypt) and 10 countries which have been re-infected
(Somalia, Yemen, Indonesia, Sudan, Ethiopia, Angola, Mali, Cameroon, Chad and
Eritrea).
* The necessary tools to eradicate polio are now in place. Stopping polio
transmission can be completed rapidly, except in Nigeria. Nigeria will need an
additional 12 months to finish the job, due to a 12-month suspension of
immunizations in 2003-04.
The remaining challenges to a polio-free world are:
1. Primary challenge: Breaking the final chains of polio transmission in
the endemic countries.
2. Acute challenge: Quickly stopping polio outbreaks in previously
polio-free countries.
3. Cross-cutting challenges:
* Maintaining funding and political commitment
* Addressing low routine immunization rates in polio-free countries
* Ensuring sufficient vaccines are available
Polio eradication will only succeed if the necessary funds are made
available, and with strong political commitment in polio-affected countries.
Failure to finish polio will result in more than 10 million paralysed children
in the next 40 years and a failure to capitalize on the US$4 billion global
investment in a polio-free world.
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