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National regulatory authorities have granted full or emergency use authorizations for 40 COVID-19 vaccines . Ten vaccines have been approved for emergency or full use by at least one stringent regulatory authority recognized by the World Health Organization (WHO): Pfizer–BioNTech, Oxford–AstraZeneca, Sinopharm BIBP, Moderna, Janssen ...

The COVID-19 vaccination campaign in the United States is an ongoing mass immunization campaign for the COVID-19 pandemic in the United States. The Food and Drug Administration (FDA) first granted emergency use authorization to the Pfizer–BioNTech vaccine on December 10, 2020, [7] and mass vaccinations began four days later.

Waiting to get a new booster after a recent COVID infection or vaccination could reduce your risk of myocarditis, a rare side effect of vaccination that involves inflammation of the heart muscle.

September 13, 2023 at 4:37 PM. Americans can expect a new round of COVID-19 boosters to roll out this week. The updated vaccines, which are recommended for everyone ages 6 months and older, will ...

While mRNA vaccines, such as the Pfizer–BioNTech COVID-19 vaccine and Moderna COVID-19 vaccine showed higher efficacy of +90%, mRNA vaccines present distribution challenges for some nations, as some may require deep-freeze facilities and trucks. By contrast, the BIBP vaccine can be transported and stored at normal refrigeration temperatures.

A COVID‑19 vaccine is a vaccine intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 ( SARS-CoV-2 ), the virus that causes coronavirus disease 2019 ( COVID‑19 ). Prior to the COVID‑19 pandemic, an established body of knowledge existed about the structure and function of coronaviruses causing ...