The chairman of a Chinese vaccine producer has said that its jabs provide protection against Covid-19 for at least six months, but the firm will continue to monitor trial participants to see how much longer immunity lasts.
“From the data we obtained, there is no problem for half a year [of Covid immunity],” Yang Xiaoming, chairman of state-owned Sinopharm subsidiary China National Biotec Group (CNBG) told Xinhua on Friday.
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