Janssen COVID-19 vaccine
Janssen COVID-19 Vaccine
The Janssen COVID-19 Vaccine (pronounced: Jan-sen Co-vid Nineteen Vac-cine), also known as Ad26.COV2.S, is a viral vector vaccine developed by Janssen Pharmaceuticals, a subsidiary of Johnson & Johnson.
Etymology
The name "Janssen" is derived from the name of the pharmaceutical company, Janssen Pharmaceuticals, which developed the vaccine. The term "COVID-19" is an abbreviation of "coronavirus disease 2019", the disease against which the vaccine provides protection.
Description
The Janssen COVID-19 Vaccine is a single-dose vaccine that uses a harmless adenovirus to deliver a piece of the SARS-CoV-2 virus's spike protein to cells in the body. This triggers an immune response, which includes the production of antibodies that can recognize and neutralize the SARS-CoV-2 virus if the person is later exposed to it.
Efficacy
The Janssen COVID-19 Vaccine has been shown to be approximately 66% effective in preventing moderate to severe COVID-19 disease. It has also demonstrated efficacy against severe disease and hospitalization.
Side Effects
Common side effects of the Janssen COVID-19 Vaccine include pain at the injection site, headache, fatigue, muscle aches, and fever. Serious side effects are rare but can include severe allergic reactions and blood clotting disorders.
Related Terms
External links
- Medical encyclopedia article on Janssen COVID-19 vaccine
- Wikipedia's article - Janssen COVID-19 vaccine
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