Novavax Covid vaccine highly effective against severe Covid: company

Washington (AFP) – US biotech firm Novavax’s Covid-19 vaccine was shown to be 100 percent protective against severe cases of the disease, including hospitalization and death, the company said Thursday following trials. But its efficacy against the South African variant fell markedly when including mild and moderate cases, results showed. The results announced Thursday were from final analyses, following interim results that were announced in late January. In a Phase 3 trial in Britain that included 15,000 participants aged 18-84, including 27 percent over the age of 65, efficacy against mild, …

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