News tagged with vaccine

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

In US, vaccine denial goes mainstream

Kathleen Wiederman is not staunchly against vaccines. She simply believes it is better for her child to naturally battle an illness than to be vaccinated against it.

Apr 06, 2014
popularity 4.3 / 5 (3) | comments 3

HIV+ women respond well to HPV vaccine

HIV-positive women respond well to a vaccine against the human papillomavirus (HPV), even when their immune system is struggling, according to newly published results of an international clinical trial. The study's findings ...

8 hours ago
popularity not rated yet | comments 0

Whooping cough boosters lack punch

Whooping cough vaccine protects infants and young children but booster doses wear off quickly, according to University of Queensland researchers.

Apr 08, 2014
popularity 5 / 5 (2) | comments 0

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