News tagged with vaccine

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

US health officials perplexed by vaccination skeptics

Public health officials in the U.S. are exasperated by their inability to persuade more parents to vaccinate their children, saying they're dealing with a small minority who are misinformed—or merely obstinate—about ...

Mar 03, 2015
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Vaccine skeptics aren't swayed by emotional scare tactics

On the heels of a nationwide measles outbreak comes a report that campaigns aimed at scaring people about the consequences of non-vaccination might not be as effective as many think. An upcoming article in the journal Communication Re ...

Mar 03, 2015
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Seth Mnookin on vaccination and public health

Seth Mnookin, an assistant professor of science writing and associate director of MIT's Graduate Program in Science Writing, is the author of "The Panic Virus: The True Story Behind the Vaccine-Autism Controversy" ...

Mar 02, 2015
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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