World Health Organization (WHO) · Journal articles

Genetic characterization of novel oral polio vaccine type 2 viruses during initial use phase under emergency use listing – worldwide, March–October 2021 – Caractérisation génétique des virus issus du nouveau vaccin antipoliomyélitique oral de type 2 pendant la phase initiale d’utilisation d’urgence au titre du protocole EUL – dans le monde, mars-octobre 2021

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