全球根除天花最终于1977年10月26日以在索马里的最后一例自然发生病例宣布实现。
Global smallpox eradication was finally achieved with the world's last naturally-occurring case in Somalia on 26 October 1977.
全球根除天花最终于1977年10月26日以在索马里的最后一例自然发生病例宣布实现。
Global smallpox eradication was finally achieved with the world's last naturally-occurring case in Somalia on 26 October 1977.
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