for well over a thousand years, smallpox was a disease that everyone feared.The disease killed much of the native population in South America when the Spanish arrived there in the early sixteenth century. By the end of the eighteen century, smallpox was responsible for the death of about one in ten people around the world. Those who survived the disease were left with ugly scars on the skin.
News of Jenner success. In 1800, the royal vaccine Institution was founded in Britain.Germany. In the following yea, Napoleon opened similar on Paris institute in Paris, France. Vaccination soon became a common method to protect people against other viral diseases, such as rabies,and vaccinces were sent across the world to the United States and India.