Vaccines and Vaccination
Vaccinations are treatments that help the body defend itself against disease and infection. Vaccines help the immune system get better at fighting disease-causing agents. Some vaccines provide life-long immunity, but sometimes people need to get a vaccine every year to remain immune to a disease. Vaccines have been around for hundreds of years and have prevented millions of deaths. Scientists continue to study disease and create new vaccines.
The first vaccine was developed by English doctor Edward Jenner in 1796. Jenner developed a vaccine to prevent smallpox, a deadly disease that was causing thousands of deaths every year. Jenner’s idea for a smallpox vaccine came from his observations about people with cowpox. He noticed that people who had contracted the...Read more