Wild poliovirus in Somalia

A child in Somalia receiving polio dropsEmergency response aimed to reach 350,000 children. WHOAn investigation has been launched into a preliminary report of the detection of a wild poliovirus type 1 (WPV1) on 9th May 2013 in the Banadir region of Somalia. This is the first WPV to be reported from Somalia since 25 March 2007. The virus was isolated from specimens collected on 21 April 2013 from a 32-month-old girl, who became ill due to acute flaccid paralysis on 18 April 2013, and from specimens collected from 3 of her close contacts.

Although the last case of WPV1 in Somalia was 25th March 2007, the country has experienced a continuous transmission of circulating vaccine-derived poliovirus (cVDPV) since 2008. The cVDPV outbreak was attributed due to a large reservoir of children unvaccinated against poliovirus: approximately 1 million children have not been reached between 2009 and 2012 due to restricted access for humanitarian actors.

An immediate vaccination response with oral polio vaccine (OPV) has been completed on May 14-16 and more than 350,000 children under the age of five were vaccinated in all the 16 districts of Banadir region and Afgoi district (target 10 years).

Another Supplementary Immunization Activity (SIA) is planned from May 26 to 29. The target is to vaccinate children less than 10 years in Banadir using bivalent oral polio vaccine (bOPV) and to vaccinate children less than 5 year in South Central Zone and Puntland using trivavent oral polio vaccine (tOPV). The initial genetic sequencing analysis indicated that the Banadir case was closely related to a WPV1 circulated in West Africa (paralysis onset in August 2012)

Two HOT acute flaccid paralysis (AFP) cases are reported; one from the same district of WPV and second from Hilwa district.

WPV type one is also reported from two contacts from  Dadab refugee camp in Kenya with date of onset of index case  April 30, 2013. Coordination between WHO Somalia and WHO Kenya offices is in progress. Both countries are planning to synchronize the SIA of May 26 -29.

A series of subsequent activities, including nationwide OPV campaigns are under discussion.

Related Links:

Disease outbreak newson polio in Somalia 

Wild polivirus in Kenya: outbreak response

 

A child in Somalia receiving polio dropsEmergency response aimed to reach 350,000 children. WHOAn investigation has been launched into a preliminary report of the detection of a wild poliovirus type 1 (WPV1) on 9th May 2013 in the Banadir region of Somalia. This is the first WPV to be reported from Somalia since 25 March 2007. The virus was isolated from specimens collected on 21 April 2013 from a 32-month-old girl, who became ill due to acute flaccid paralysis on 18 April 2013, and from specimens collected from 3 of her close contacts.

Although the last case of WPV1 in Somalia was 25th March 2007, the country has experienced a continuous transmission of circulating vaccine-derived poliovirus (cVDPV) since 2008. The cVDPV outbreak was attributed due to a large reservoir of children unvaccinated against poliovirus: approximately 1 million children have not been reached between 2009 and 2012 due to restricted access for humanitarian actors.

An immediate vaccination response with oral polio vaccine (OPV) has been completed on May 14-16 and more than 350,000 children under the age of five were vaccinated in all the 16 districts of Banadir region and Afgoi district (target 10 years).

Another Supplementary Immunization Activity (SIA) is planned from May 26 to 29. The target is to vaccinate children less than 10 years in Banadir using bivalent oral polio vaccine (bOPV) and to vaccinate children less than 5 year in South Central Zone and Puntland using trivavent oral polio vaccine (tOPV). The initial genetic sequencing analysis indicated that the Banadir case was closely related to a WPV1 circulated in West Africa (paralysis onset in August 2012)

Two HOT acute flaccid paralysis (AFP) cases are reported; one from the same district of WPV and second from Hilwa district.

WPV type one is also reported from two contacts from  Dadab refugee camp in Kenya with date of onset of index case  April 30, 2013. Coordination between WHO Somalia and WHO Kenya offices is in progress. Both countries are planning to synchronize the SIA of May 26 -29.

A series of subsequent activities, including nationwide OPV campaigns are under discussion.

Related Links:

Disease outbreak newson polio in Somalia 

Wild polivirus in Kenya: outbreak response