The smallpox vaccine is an injection to prevent one from contracting smallpox. It has been used to help the body to develop immunity against the disease.
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Smallpox
Yes vaccine prevent human life as Vaccine are used to create immunity in the body to fight against germs which cause diseases. The best example of vaccination is smallpox vaccine which help in eludation of this disease completely from the earth
A vaccine works by producing antibodies to immunize the body against the virus that vaccine is intended to protect against.
Edward Jenner was a medical doctor, surgeon and scientist. He is also called the "father of immunology" for his work in producing a smallpox vaccine. The smallpox vaccine was actually a cowpox variation but it did provide protection against smallpox.
The website for the centers for disease control and prevention has information about the smallpox vaccine. It will inform you what smallpox is, what are the symptoms, and why you should get the vaccine.
The smallpox vaccine comes from cows. Most diseases you a weakened form of the disease. However the smallpox vaccine is brought from cowpox. (closely related to smallpox but not as dangerous). You cannot get this vaccine anymore and if you did it would result in a bad reaction.
illness
Not specifically, but the HBV vaccine will protect against HDV.
Edward Jenner developed vaccine against smallpox in 1798. He used cowpox virus containing fluid for the same.
No, he developed a vaccine for smallpox, back in 1796. But his successful experiments led to other vaccines long after he died, including the polio vaccine, which is usually credited to Jonas Salk-- he announced it in 1953.