News Snapshot:
Covid: China Sinovac vaccine trial halted in Brazil The Brazilian clinical trial for a high-profile Chinese Covid-19 vaccine has been suspended after health authorities reported a "severe adverse" incident. Brazilian health regulator Anvisa said it took place on 29 October, but did not give further details. The Sinovac vaccine is one of several in final-stage testing globally. But China has already been using it to immunise thousands of people at home in an emergency use programme. There was no immediate response from Sinovac. Brazil has been one of the countries worst affected by coronavirus, recording more than 5.6m confirmed cases...
