How effective are vaccines against COVID-19 variants? | Negros Occidental Provincial Government

How effective are vaccines against COVID-19 variants? | Negros Occidental Provincial Government

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COVID-19 UPDATES

How effective are vaccines against COVID-19 variants?

PIO Capitol
September 2, 2021
3:23 pm

How effective are vaccines against COVID-19 variants? Read to know.

Source: World Health Organization