COVID-19 vaccine
Vaccine against SARS-CoV-2
COVID-19 vaccine
A COVID‑19 vaccine is designed to induce immunity against SARS-CoV-2, the virus responsible for coronavirus disease 2019 (COVID-19). COVID-19 vaccines help reduce the risk of severe illness, hospitalization and death from the virus. COVID‑19 vaccines were developed at an unprecedented pace to tackle the COVID-19 pandemic, with the first clinical trials beginning in March 2020. Before approval, vaccines underwent the standard three phases of clinical trials, although phases were conducted in parallel to accelerate development. Vaccines have been developed based on both classical technologies (using inactivated virus or protein subunit) and novel platforms (mRNA or viral vector-based). Prior research on coronaviruses causing severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS) accelerated the development of various vaccine platforms in early 2020. The 2023 Nobel Prize in Physiology or Medicine was awarded to Katalin Karikó and Drew Weissman for the development...
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