POLIO [to 9 April 2016]
Public Health Emergency of International Concern (PHEIC)

Polio this week as of 6 April 2016
:: The third Outbreak Response Assessment in Madagascar found that the surveillance system is not yet strong enough to conclude that polio transmission has been interrupted. Thirty-nine high-risk districts have been identified to receive focused attention.
:: There is one week to go until the globally synchronized switch from the trivalent to bivalent oral polio vaccine, the first stage of objective 2 of the Polio Eradication and Endgame Strategic Plan 2013-2018. Learn more about preparations for the switch here. Learn more about the rationale for the switch through this series of videos.

Selected Country Levels Updates [excerpted]
Pakistan
:: Five new WPV1 environmental positive samples were reported in the past week, with collection dates between 3 February and 12 March 2016. Two were collected from Sindh, one from Balochistan, one from Punjab and one from Khyber Pakhtunkhwa.
:: Sub-National Immunization Days (NIDs) are planned in April using bOPV.