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vaccine
(redirected from dead vaccine)

    Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.06 sec.

vaccine

Preparation containing either killed or weakened live microorganisms or their toxins, introduced by mouth, by injection, or by nasal spray to stimulate production of antibodies against an infectious agent. This confers immunity to that agent, since the B lymphocytes remain sensitized to it and respond to later infection by producing more antibodies. The first vaccine, against smallpox, was introduced by Edward Jenner in 1798. Vaccines have been developed against diseases caused by bacteria (e.g., typhoid, whooping cough, tuberculosis) and by viruses (e.g., measles, influenza, rabies, poliomyelitis). Effectiveness varies, and a small percentage of people have adverse reactions. Those with immunodeficiency disorders should not receive live vaccines.



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Flu shots, which use a dead vaccine, can't cause the flu, but on occasion cause some reaction, most commonly redness, soreness and swelling at the site of the shot.
Flu shot clinics start next month by The Register-Guard (Eugene, OR)
``It's a dead vaccine and it can't transmit influenza,'' she said.
GETTING THE POINT; FLU SHOTS MAY BEAT BAD BUG by Daily News (Los Angeles, CA)
Shots aside, however,Fannin and other officials worry that the dead vaccine won't give the same blanket protection as the live vaccine, which can "cross-vaccinate": In the same way the weakened virus can cause polio in people with significant immunity deficiencies, it can also spread its effectiveness from a child who has recently been immunized with the live vaccine to one who has not.
CHOOSING SIDES IN POLIO WAR\Many claim oral vaccine's safe and ... by Daily News (Los Angeles, CA)
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