Vaccines
Vaccine history
The term ''vaccine'' was derived from the Edward Jenner's 1796 use of the term ''cow pox'' (Latin ''variolæ vaccinæ'', adapted from the Latin ''vaccīn-us'', from ''vacca'' cow). He was the pioneer of using cow
What are vaccines made of?
A vaccine is a biological preparation that improves immunity to a particular disease. Traditional vaccines contain either parts of microbes or whole microbes that have been killed or weakened so that they don't cause disease.
When a person is inoculated with these preparations, the immune system confronts these harmless versions of the germs. The immune system quickly clears them from the body.
In turn the body remembers the germs so that later in life when it encounters the real live virulent germs it may be able to fight it off with the retained memory against the particular germ. pox vaccines to prevent small pox infections.
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