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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Hepatitis B Vaccine - Twitter Search

Hepatitis: How Long Does Hepatitis B Vaccine Protection Last? http://bit.ly/4z2ju6
radkamrin (Austina Thornley) Wed, 04 Nov 2009 09:29:48 -0000
Hepatitis: How Long Does Hepatitis B Vaccine Protection Last? http://bit.ly/4z2ju6
@markliao How long does the first plasma-derived cancer vaccine (Hepatitis B) protect? Still protective after 22 years http://bit.ly/4BFDPW
virusip (M&I) Wed, 04 Nov 2009 08:05:11 -0000
@markliao How long does the first plasma-derived cancer vaccine (Hepatitis B) protect? Still protective after 22 years http://bit.ly/4BFDPW
How long does hepatitis B vaccine protection last? - Infections - http://bit.ly/2Sx85s
immuneprotect (Erwin Mcken) Wed, 04 Nov 2009 06:10:50 -0000
How long does hepatitis B vaccine protection last? - Infections - http://bit.ly/2Sx85s
How long does hepatitis B vaccine protection last? - Infections -: The hepatitis B vaccine - given to protect a.. http://bit.ly/VvPEP
radkamrin (Austina Thornley) Wed, 04 Nov 2009 05:33:55 -0000
How long does hepatitis B vaccine protection last? - Infections -: The hepatitis B vaccine - given to protect a.. http://bit.ly/VvPEP
Baby Immunization - Polio Vaccine - Hepatitis B Vaccine - MMR ... http://bit.ly/3hLyIM
HealAllDiseases (Madison Cavanaugh) Wed, 04 Nov 2009 05:19:51 -0000
Baby Immunization - Polio Vaccine - Hepatitis B Vaccine - MMR ... http://bit.ly/3hLyIM
AGE OF AUTISM: David Kirby: New Study: Hepatitis B Vaccine Triples... http://tinyurl.com/yf4omhy
chrisnck5 (Chris Hicks) Wed, 04 Nov 2009 02:23:45 -0000
AGE OF AUTISM: David Kirby: New Study: Hepatitis B Vaccine Triples... http://tinyurl.com/yf4omhy

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