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china China gives conditional approval to homegrown Sinopharm coronavirus vaccine The company announced Wednesday that preliminary data from last-stage trials had shown it to be 79.3 per cent effective. It is an inactive vaccine, which means the virus was grown in a lab and then killed. The germ is then injected into the body to generate an immune response. sinovac The trial was halted after a "severe adverse incident" - reported to be the death of a volunteer. Brazilian health regulator Anvisa said the incident had taken place on 29 October but gave no further details.

infected Hundreds of Thai medical workers infected despite Sinovac vaccinations Thailand's health ministry said on Sunday more than 600 medical workers who received two doses of China's Sinovac vaccine have been infected with Covid-19, as authorities weigh giving booster doses to raise immunity. Of the 677,348 medical personnel who received two doses of Sinovac, 618 became infected, health ministry data from April to July showed. A nurse has died and another medical worker is in critical condition.