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Polio Highlight

This week we are celebrating Vaccination Week in the Americas

This April, the countries and territories of the Americas and the Pan American Health Organization will celebrate Vaccination Week in the Americas. This initiative is now in its 11th year and has been a key driver of progress in immunization.

Over the last decade, more than 411 million people have been vaccinated under the umbrella of Vaccination Week in the Americas. 44 countries and territories in the Region have committed to celebrating this milestone initiative in 2013.

The success of Vaccination Week in the Americas (VWA) has served as a model for other Regions of the WHO in the implementation of successful sister initiatives. 2012 marked a milestone as the globe celebrated the first World Immunization Week (WIW), later endorsed with a resolution at the World Health Assembly.

Last Updated on Friday, 26 April 2013 17:29

No Wild Poliovirus Type 3 in Asia in a year

It has been 12 months since Asia reported its last case due to wild poliovirus type 3 (WPV3). The last case on the continent occurred on 18 April 2012 in Khyber Agency, Federally Administered Tribal Area (FATA), Pakistan. Globally, WPV3 transmission is at its lowest levels ever recorded. Over the past six months, only one case due to this strain was reported worldwide (from Yobe, Nigeria, with onset of paralysis on 10 November 2012).

Last Updated on Friday, 26 April 2013 13:48

122 2012 AFP cases are pending classification

PAHO urges countries to classify their 2012 AFP cases
Last Updated on Thursday, 28 March 2013 14:01

Only Chad Remains in the Polio Re-established Transmission List

  • In the Democratic Republic of Congo (DR Congo), all samples from 2012 AFP cases have now been fully cleared, and confirm that the country has not reported a WPV case in over one year (the last reported WPV case had onset of paralysis on 20 December 2011). The country is no longer considered to be affected by re-established WPV transmission (DR Congo had been affected by re-established transmission since 2006).
  • With Angola successfully coming off the re-established transmission list in July 2012, South Sudan in 2010 and now DR Congo, Chad remains the only country with re-established WPV transmission. Although the country is on track to becoming again polio-free in June 2013 (most recent WPV case: 14 June 2012), Chad remains affected by a cVDPV2 outbreak.


Last Updated on Wednesday, 12 March 2014 09:16

cVDPV2 Outbreak from 2011 in South-Central Somalia is Ongoing

•    In Somalia, a new circulating vaccine-derived poliovirus type 2 (cVDPV2) (onset of paralysis on 9 January 2013) was reported.  
•    This latest case is linked to a cVDPV2 outbreak ongoing in south-central Somalia since 2011 – nine cases were reported in 2011 and one case in 2012 (July).  
•    In 2012, this outbreak spread across the border to Kenya, with three cases reported from Dadaab, in North Eastern Province between April and June 2012.  
•    In late 2012 and January 2013, access to populations is being achieved for the first time in three years in key areas of south-central Somalia, as a result of concerted local-access negotiations.
•    An emergency action plan for south-central Somalia has been developed and is being implemented.  At the same time, efforts are on-going to further boost population immunity levels in accessible, polio-free areas of Somalia, as well as in border areas of Kenya.
•    However, confirmation of this most recent case underscores that the outbreak is ongoing and more outbreak response must be implemented

Last Updated on Thursday, 21 February 2013 14:13
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Regional Office for the Americas of the World Health Organization
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