News tagged with vaccine

Related topics: immune response · immune system · influenza · flu · infectious diseases

Flu infection reveals many paths to immune response

A new study of influenza infection in an animal model broadens understanding of how the immune system responds to flu virus, showing that the process is more dynamic than usually described, engaging a broader array of biological ...

Sep 28, 2015
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Religious exemptions for vaccines endanger us all

The measles epidemic in the western United States earlier this year provides a good reminder that it is time to end the religious exemption for vaccination. It may also be time for physicians to change the way they educate ...

Jul 09, 2015
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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

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