Notes from the Field: Circulating Vaccine-Derived Poliovirus Type 2 Emergences Linked to Novel Oral Poliovirus Vaccine Type 2 Use - Six African Countries, 2021-2023

摘要

This report describes the circulation of vaccine-derived poliovirus type 2 in six African countries.

This report describes the circulation of vaccine-derived poliovirus type 2 in six African countries.

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萃取時間: 2026-02-05T15:10:37Z 資料來源: CDC MMWR