Biến thể phụ BA.5 có khả năng kháng vaccine ngừa COVID-19 gấp 4 lần

Lan Phương (TTXVN/Vietnam+) 12:32 16/07/2022

(Baothanhhoa.vn) - Hiện BA.5, biến thể phụ của Omicron, đã trở thành biến thể lây nhiễm chủ đạo tại Mỹ và khiến làn sóng dịch COVID-19 trỗi dậy ở một số nước châu Âu.

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