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Table 2 Programmatic implications of risk classifications of districts for July 2016 to June 2017

From: Spatial model for risk prediction and sub-national prioritization to aid poliovirus eradication in Pakistan

Tier Number of districts Target population (%) Goal Strategy
1 11 4,042,214 (11%) Interrupt endemic and/or persistent local transmission using multiple strategies NID + SNID + CBV in selected UCs + Priority 1 for combined bOPV/IPV SIA + RI service delivery support and other auxiliary support
2 33 5,746,129 (16%) Interrupt transmission if transmission is ongoing, decrease vulnerability NID + SNID + CBV in selected UCs + Priority 2 for bOPV/IPV SIA + RI service delivery support + other auxiliary support
3 24 7,246,474 (20%) Decrease vulnerability NID + SNID
4 87 19,638,741 (54%) Maintain high population immunity NID only
  1. Tier classifications dictate inclusion in National Immunization Days (NIDs), Sub-National Immunization Days (SNIDs) and employment of community-based vaccination (CBV) strategies in selected Union Councils (UCs). Reproduction of Panel 1 in the National Emergency Action Plan ([6], p. 19)
  2. IPV inactivated polio vaccine, OPV oral polio vaccine, SIA supplementary immunization activity, RI routine immunization