Why is a second COVID-19 vaccine dose necessary?

Why is a second COVID-19 vaccine dose necessary?
By Kayla Rivas

The latest data from the Centers for Disease Control and Prevention (CDC) reports over 55% of American adults now have at least one dose of COVID-19 vaccine, though recent findings estimated 8% of those are skipping their second appointments.





May 1, 2021 at 02:00AM
via FOX News read more...

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