The introduction of which vaccine in the 18th century significantly reduced the

The introduction of which vaccine in the 18th century significantly reduced the incidence of smallpox?

The introduction of which vaccine in the 18th century significantly reduced the incidence of smallpox?

Step 1: Understand that smallpox is a serious disease that affected many people in the past.
Step 2: Learn that Edward Jenner was a doctor who wanted to find a way to prevent smallpox.
Step 3: In 1796, Jenner discovered that people who had cowpox (a similar but less harmful disease) did not get smallpox.
Step 4: Jenner used material from a cowpox sore to create the first smallpox vaccine.
Step 5: This vaccine helped protect people from getting smallpox, leading to a significant reduction in the disease.

No concepts available.