Pieces (or synthetic pieces) of the disease causing organism called antigens that can be recognized by the immune system as something that does not belong in the body. This prompts the immune system to produce antibodies that recognize those antigens and attack them the next time they appear, typically when challenged by the real disease causing organism.
weakened or killed polio virus
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Dr. Jonas Salk
Jonas Salk's initial testing of polio vaccine is 60 - 70% effective against PV1 (poliovirus type 1, over 90% effective against PV2 and PV3, and 94% effective against the development of bulbar polio.
Jonas Salk's initial testing of polio vaccine is 60 - 70% effective against PV1 (poliovirus type 1, over 90% effective against PV2 and PV3, and 94% effective against the development of bulbar polio.
a vaccine that stops you getting polio!
Albert Sabin is best known for his development of a polio vaccine that used live, attenuated polio virus and was therefore more effective than the Salk vaccine.
For such a reply, you may go: "The Demon Has Left Your Daughter."
No, Jonas Salk was not the only one that made a polio vaccine. Dr. Albert Sabin made one a few years after in 1963.
To protect against polio.
The inventor of one of the forms of the Polio vaccine, Dr. Salk was born in New York City and died 1995 due to heart failure.
Albert Sabin in1960's
Albert Sabin founded the oral polio vaccine and the vaccine was licensed in 1962.
To prevent polio.