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Chinese Covid-19 vaccine ‘CoronaVac’ TRIAL halted in Brazil

Brazilian clinical trial for a Chinese Covid-19 vaccine has been suspended after health authorities reported a “severe adverse” incident. Brazilian health regulator Anvisa said the incident took place on 29 October, but did not give further details. The CoronaVac vaccine, developed by the Chinese firm Sinovac Biotech, is one of several in final-stage testing globally. […]