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According to the CDC, if you’re vaccinated and exposed to COVID-19, you do not need to quarantine. However, it’s recommended that you: wear a well-fitting mask for 10 days after the exposure ...
For older adults who have been isolated from family and friends for the better part of a year to stay safe from the coronavirus, the emergency authorization of two COVID-19 vaccines offers some ...
Effectiveness of 2-dose vaccination with mRNA COVID-19 vaccines against COVID-19-associated hospitalizations among immunocompromised adults – nine states, January-September 2021. https://www.cdc ...
Vaccines for COVID-19 not only lessen the risk of getting sick from the virus, but also of spreading it to others. But for some people, like young babies and people with weaker immune systems, the ...
The vaccine should slow the spread of COVID-19 around the world. Fewer people should get sick, and more lives can be saved. The Pfizer, Moderna, and Novavax vaccines have been shown to be at least ...
The CDC recommends an additional booster shot for certain people to amp up their immune system against potential COVID-19 variants. If you got the J&J Janssen vaccine as your first vaccine and ...
A COVID‑19 vaccine is a vaccine intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 , the virus that causes coronavirus disease 2019 . Prior to the COVID‑19 pandemic , an established body of knowledge existed about the structure and function of coronaviruses causing diseases like severe acute ...
A study on the effectiveness of a first dose of the Pfizer–BioNTech or Oxford–AstraZeneca COVID-19 vaccines against COVID-19 related hospitalisation in Scotland was based on a national prospective cohort study of 5.4 million people. Between 8 December 2020 and 15 February 2021, 1,137,775 participants were vaccinated in the study, 490,000 of ...