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Medical care (TRBC level 1)
Pfizer / BioNTech vaccine seems effective against mutation in new coronavirus variants – study
Sinovac vaccine is 78% effective in the study in Brazil, experts ask for more details
The most infectious COVID-19 variant in at least five US states – NIH Director
The most infectious COVID-19 variant in at least five US states – NIH Director
The most infectious COVID-19 variant in at least five US states – NIH Director
The most infectious COVID-19 variant in at least five US states – NIH Director
US officials report more severe allergic reactions to COVID-19 vaccines
US officials report more severe allergic reactions to COVID-19 vaccines
US exceeds 21 million COVID-19 cases with record hospitalizations as states speed up vaccinations
US exceeds 21 million COVID-19 cases with record hospitalizations as states speed up vaccinations
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