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Volume 24, Number 11—November 2018
Research Letter

Effect of Inactivated Poliovirus Vaccine Campaigns, Pakistan, 2014–2017

Nicholas C. GrasslyComments to Author , Mufti Zubair Wadood, Rana M. Safdar, Abdirahman Sheikh Mahamud, and Roland W. Sutter
Author affiliations: Imperial College London, London, United Kingdom (N.C. Grassly); World Health Organization, Geneva, Switzerland (M.Z. Wadood, R.W. Sutter); Ministry of National Health Services, Islamabad, Pakistan (R.M. Safdar); World Health Organization, Islamabad (A.S. Mahamud)

Main Article

Figure

Location and impact of mass campaigns in Pakistan during January 2014–October 2017 that have included inactivated poliovirus vaccine (IPV) alongside oral vaccine. A) Gray shading indicates districts in Pakistan that conducted campaigns with IPV during January 2014–October 2017. B) The incidence rate ratio (IRR) for poliomyelitis and the prevalence ratio (PR) for poliovirus detection in environmental samples (sewage) during 90 days after compared with 90 days before mass vaccination campaigns wit

Figure. Location and impact of mass campaigns in Pakistan during January 2014–October 2017 that have included inactivated poliovirus vaccine (IPV) alongside oral vaccine. A) Gray shading indicates districts in Pakistan that conducted campaigns with IPV during January 2014–October 2017. B) The incidence rate ratio (IRR) for poliomyelitis and the prevalence ratio (PR) for poliovirus detection in environmental samples (sewage) during 90 days after compared with 90 days before mass vaccination campaigns with different vaccines. The mean estimates (diamonds) are shown with 90% bootstrap CIs (error bars). Detailed methods and results are given in the Technical Appendix. bOPV, bivalent oral poliovirus vaccine; IPV, inactivated poliovirus vaccine; tOPV, trivalent oral poliovirus vaccine.

Main Article

Page created: October 16, 2018
Page updated: October 16, 2018
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The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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