Vaccination

WHO restarts evaluation of Russian COVID-19 shot

The World Health Organization said Friday it had "restarted" a process that could grant emergency authorisation for the Russian-made Sputnik V vaccine against COVID-19, after several months in limbo.

Diseases, Conditions, Syndromes

Flu season underway amid ongoing COVID-19 pandemic

For the second straight year, flu season is emerging against the backdrop of the COVID-19 pandemic. While the number of flu cases was relatively low last year, experts at Johns Hopkins Medicine say that this year, it could ...

Diseases, Conditions, Syndromes

Not out of the woods: COVID cases rising in Western Europe

Santa won't be getting his traditional welcome in the Dutch city of Utrecht this year. The ceremonial head of Carnival celebrations in Germany's Cologne had to bow out because he tested positive for COVID-19. And Austria ...

Diseases, Conditions, Syndromes

Protection of dialysis patients from COVID variants of concern

Researchers led by the Marien Hospital Herne, a Ruhr-Universität Bochum clinic, have investigated the extent to which mRNA vaccines protect dialysis patients from infection with variants of concerns of SARS-Cov-2. They showed ...

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Vaccine

A vaccine is a biological preparation that improves immunity to a particular disease. A vaccine typically contains a small amount of an agent that resembles a microorganism. The agent stimulates the body's immune system to recognize the agent as foreign, destroy it, and "remember" it, so that the immune system can more easily recognize and destroy any of these microorganisms that it later encounters.

Vaccines can be prophylactic (e.g. to prevent or ameliorate the effects of a future infection by any natural or "wild" pathogen), or therapeutic (e.g. vaccines against cancer are also being investigated; see cancer vaccine).

The term vaccine derives from Edward Jenner's 1796 use of the term cow pox (Latin variolæ vaccinæ, adapted from the Latin vaccīn-us, from vacca cow), which, when administered to humans, provided them protection against smallpox.

This text uses material from Wikipedia, licensed under CC BY-SA