Chinese biopharmaceutical company Sinovac has hit back following a report that the United States military ran a secret anti-vax programme during the Covid-19 crisis to discredit China’s vaccine, calling the Pentagon campaign a “wrong attack that will create enormous disaster”. 據報道，美國軍方在Covid-19危機期間實施秘密反疫苗計劃，抹黑中國疫苗，中國生物製藥公司科興公司對此進行了反擊，稱五角大樓的行動是「錯誤的攻擊，將造成巨大的災難」.