Smallpox is a deadly and very contagious virus. It was a big threat in the United States in the 1940’s and the last known case was recorded in 1949.
Vaccination was carried out in a variety of countries around the world and led to the eradication of the disease.
The disease is characterized by flu-like symptoms and a rash that appears on the face and the arms.
There is no known cure for smallpox but there is a vaccine that can prevent infection.
The vaccine itself carries some risk to it and is a very sensitive disease to handle.