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2023-04-15
疟疾疫苗
加纳批准使用经试验有效的
疟疾疫苗
R21-Matrix-M以降低儿童死亡率。
Ghana first to approve Oxford's malaria vaccine © Reuters
/cloudfront-us-east-2.images.arcpublishing.com/reuters/XD6GOSUDBBKVNJVQYUEJGEVCKI.jpg "Ghana first to approve Oxford's malaria vaccine © Reuters")