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A vaccine is an antigenic preparation used to produce active immunity to a disease, in order to prevent or ameliorate the effects of infection by any natural or "wild" strain of the organism. The term derives from Edward Jenner's use of cowpox ("vacca" means cow in Latin), which, when administered to humans, provided them protection against smallpox, which Pasteur and others perpetuated. The process of distributing and administrating vaccines is referred to as vaccination.

Vaccines against cancer are also being investigated; see cancer vaccine. In this case, the antigenic preparation is derived from the cancer cell. There is also research on an HIV vaccine.

Origin of vaccines


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Influenza

 
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Influenza Virus Vaccine - Twitter Search

H10N1: A deadly influenza virus rages out of control. There is no easy-fix vaccine. No eleventh-hour containment... http://t.co/GBB67Xx8
ydowaly (Sheryl Hauth) Sat, 04 Feb 2012 00:23:15 -0000
H10N1: A deadly influenza virus rages out of control. There is no easy-fix vaccine. No eleventh-hour containment... http://t.co/GBB67Xx8
RT @Flu_Wisdom: Influenza virus vaccine: Palmoplantar keratoderma and ichthyosis: case report: (Source: Reactions) http://t.co/bGVZsOeP
timkuberski (M.D. Tim Kuberski) Fri, 03 Feb 2012 20:31:44 -0000
RT @Flu_Wisdom: Influenza virus vaccine: Palmoplantar keratoderma and ichthyosis: case report: (Source: Reactions) http://t.co/bGVZsOeP
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500 FluMist - Provides medication description, prescribing information and resources for US patients and healthcare professionals.

Influenza Virus Vaccine - Familydoctor.org - Information for patients in English and Spanish.

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