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Chad

Status: re-established transmission

In Chad, circulation of an imported wild poliovirus has persisted for more than 12 months, and the country is classified as having re-established transmission. In 2009, re-established polioviruses in Chad re-infected other, previously polio-free countries and areas. As the re-established virus is still circulating throughout most of the country, the priority is to improve the quality of nationwide campaigns.

Polio campaign monitoring

Polio this week in Chad

No new WPV cases were reported in the past week. The most recent WPV case had onset of paralysis on 14 June 2012 (WPV1 from Lac).
No new cVDPV2 cases were reported in the past week. The total number of cVDPV2 cases for 2013 remains one (onset of paralysis on 4 February from Salamat).
The most recent subnational immunization days (SNIDs) were conducted on 26-29 April, to be followed by further SNIDs on 24-27 May and a nationwide activity in June, all with trivalent OPV.