Polio this week

November 2, 2016

Polio this week as of  2 November 2016

  • The new Transition Independent Monitoring Board (Transition IMB) has now been established, to monitor and guide polio transition (previously referred to as ‘legacy’) planning. The Transition IMB is separate from the regular IMB which monitors and guides progress towards interrupt of transmission of polioviruses. The Transition IMB will hold its inaugural meeting next week in London, United Kingdom (UK). For more about the Transition IMB and transition planning.
  • In Nigeria this week, experts from the Government and international partners are convening a urgent meeting to assess the impact of outbreak response conducted thus far. The group will look at progress achieved in boosting immunity levels and strengthening surveillance, and review additional strategies and tactics to further intensify the outbreak response. A similar review will be conducted next week looking at the broader regional outbreak response across the entire Lake Chad basin.
  • A new field study conducted in Sri Lanka has concluded that fractional dose inactivated polio vaccine (fIPV) is as effective as full-dose IPV in boosting mucosal immunity in OPV-primed populations. Boosting mucosal immunity is critical to interrupting virus transmission in a community. Previous studies had already confirmed that fIPV was as effective at inferring humoral immunity as full-dose IPV. This latest evidence gives further weight to the recommendation of the Strategic Advisory Group of Experts on immunization (SAGE), for countries to consider adopting fIPV in both their supplementary and routine immunization activities. This approach could significantly improve the global IPV supply situation which is currently constrained, by reducing the volume of IPV needed to cover a population. Countries are increasingly using fIPV, both in routine and vaccination campaigns, including Pakistan which conducted a mass campaign using fIPV just last week.
  • News this week: continuing our focus on innovating strategies to facilitate eradication, an analysis reveals how new and strengthened surveillance in Nigeria helped detect the outbreak against the backdrop of insecurity and a humanitarian crisis. More.
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