News tagged with vaccine

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

You'll feel the pinch this year: Get the flu shot

This year, everyone will have to roll up their sleeves and receive the flu shot via injection, as the Centers for Disease Control and Prevention (CDC) no longer recommends the nasal flu mist vaccine due to ineffectiveness.

9 hours ago
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Flagging flu-shot rate worries CDC

(HealthDay)—The flu-vaccination rate sagged in the United States last season, causing concern among public health officials that more Americans might wave off a flu shot this year.

Sep 29, 2016
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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

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