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 A Vaccine - Twitter Search

typhoid fever and hepatitis A vaccine owned me today. my arm is incapacitated.
KennedyKerri (Kerri Kennedy) Thu, 17 Dec 2009 23:44:24 -0000
typhoid fever and hepatitis A vaccine owned me today. my arm is incapacitated.
Raising Healthy Kids Naturally: A Safer Way to Vaccinate...Is ...: Hepatitis B triple series vaccine and develo.. http://bit.ly/644wNJ
sheldon1123 (sheldon) Thu, 17 Dec 2009 21:40:13 -0000
Raising Healthy Kids Naturally: A Safer Way to Vaccinate...Is ...: Hepatitis B triple series vaccine and develo.. http://bit.ly/644wNJ
What Should I Know About Hepatitis B? at new york car insurance: Interestingly enough, a vaccine can be useful afte... http://bit.ly/7UmaRs
radkamrin (Austina Thornley) Thu, 17 Dec 2009 10:35:14 -0000
What Should I Know About Hepatitis B? at new york car insurance: Interestingly enough, a vaccine can be useful afte... http://bit.ly/7UmaRs
Published data showing diabetes rates rose significantly in New Zealand following a massive hepatitis B vaccine campaign in young children
nancyguberti (Nancy Guberti) Thu, 17 Dec 2009 03:07:21 -0000
Published data showing diabetes rates rose significantly in New Zealand following a massive hepatitis B vaccine campaign in young children
Of course the only place in the area with the hepatitis A vaccine is the one that charges $30 more.
abbycat0 (Abby) Wed, 16 Dec 2009 20:56:47 -0000
Of course the only place in the area with the hepatitis A vaccine is the one that charges $30 more.
Now enrolling HEALTHY volunteers, age 40-70, for a Hepatitis B vaccine study. 3 injections. Compensation is up to... http://bit.ly/7Wo5eX
Apex_Research (Apex Research) Wed, 16 Dec 2009 17:59:21 -0000
Now enrolling HEALTHY volunteers, age 40-70, for a Hepatitis B vaccine study. 3 injections. Compensation is up to... http://bit.ly/7Wo5eX

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