Covaxin 50% effective against Delta variant, shows Lancet study.
Two doses of Covaxin are 50 percent effective against the symptomatic disease. The findings are based on the study conducted between April 15 and May...
WHO fears 700,000 more deaths in Europe.
Europe remains in the firm grip of Covid and the deaths toll on the continent could top 2.2 million this winter. If current trends continue,...