Chinese 3-shot Covid-19 vaccine maker says trials show it is nearly 82 per cent effective

A Chinese Covid-19 vaccine that is already being used in the country’s domestic vaccination campaign has been found to be nearly 82 per cent effective in a late stage clinical trial, the company said in an exchange filing on Friday.A preliminary analysis of trial data also indicated the vaccine, developed by a unit of Chongqing Zhifei Biological Products, was able to hold up against the highly transmissible Delta variant, with almost 78 per cent efficacy.The filing, which did not include…

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