It has been, but from what I've heard Sinovac is significantly less effective than the others: https://apnews.com/article/china-gao-fu-vaccines-offer-low-protec

It has been, but from what I've heard Sinovac is significantly less effective than the others: https://apnews.com/article/china-gao-fu-vaccines-offer-low-protection-coronavirus-675bcb6b5710c7329823148ffbff6ef9 https://apnews.com/article/china-gao-fu-vaccines-offer-low-p...