News tagged with vaccine

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

Canada to ban junk food ads targeting kids?

As you may have heard, we have a new Prime Minister here in Canada. This week he gave marching orders to members of his cabinet, and as you might expect, he has some interesting goals for our new Minister of Health, Dr Jane ...

Nov 17, 2015
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Avoiding colds and flu

Celebrating fall and looking forward to the holiday season is exciting for most of us. We look forward to bonfires, falling leaves, social gatherings and holiday events. We share laughs and visits with friends and family. ...

Nov 10, 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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