doctor examining a child

Diphtheria is an infection caused by the bacterium Corynebacterium diphtheriae. Diphtheria causes a thick covering in the back of the throat. It can lead to difficulty breathing, heart failure, paralysis, and even death. CDC recommends vaccines for infants, children, teens and adults to prevent diphtheria.

Diphtheria Vaccination
Diphtheria Photos
Corynebacterium diphtheriae bacteria

Photos of the bacterium that causes diphtheria and images of people with the disease.

Page last reviewed: December 17, 2018