Pfizer, Moderna Covid vaccines highly effective after first shot, US study showssource https://www.indiatoday.in/coronavirus-outbreak/story/pfizer-moderna-covid-vaccine-effective-first-shot-us-study-1784902-2021-03-30?utm_source=rss
Monday 29 March 2021
Pfizer, Moderna Covid-19 vaccines highly effective after first shot, US study shows
Pfizer, Moderna Covid vaccines highly effective after first shot, US study showssource https://www.indiatoday.in/coronavirus-outbreak/story/pfizer-moderna-covid-vaccine-effective-first-shot-us-study-1784902-2021-03-30?utm_source=rss
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