This section provides in-depth information on vaccines; from detailed information on how vaccines work and why they are important, to an in-depth look into the diseases they prevent.
The diseases vaccines prevent can cause serious illness, long-term disability and death. Vaccines are a safe and effective way to protect you, your family, and others from these diseases.
Vaccines give you immunity to a disease without you getting sick first. They are made using killed or weakened versions of the disease-causing germ or parts of the germ (called antigens). For some vaccines, genetic engineering is used to make the antigens used in the vaccine. It’s much safer to get a vaccine than to get the disease it prevents.