Weekly Epidemiological Record (WER)

Weekly Epidemiological Record, 9 September 2016, vol. 91, 36/37 (pp. 421–432)

Contents
421 Cessation of use of trivalent oral polio vaccine and introduction of inactivated poliovirus vaccine worldwide, 2016
427 Performance of acute flaccid paralysis (AFP) surveillance and incidence of poliomyelitis, 2016

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