From strength to strength
A vaccine is a substance that is used to stimulate the production of antibodies and provide immunity against a disease. It acts as an antigen without inducing the disease.
Vaccines have led to major improvements in child health over a short period. Many infectious diseases that your parents suffered as children will no longer infect you. That is because vaccines have taken care of it.
This Word Search has names of diseases that have vaccines. See how many you know.