Download covaxin phase 3 data shows 77.8 percent efficacy against covid 19 symptoms

Duration: (2:41) 2025-02-18T20:04:36+00:00



covaxin phase 3 data shows 77.8 percent efficacy against covid 19 symptoms covaxin phase 3 data shows 77.8 percent efficacy against covid 19 symptoms covaxin phase 3 data shows 77.8 percent efficacy against covid 19 symptoms

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