causes of diphtheria
Diphtheria is caused by the c orynebacterium diphtheriae bacterium. Itâs most commonly spread through person-to-person contact or contact with items that have the bacteria on them.Coming into contact with items such as an infected personâs cup or used tissue can transfer the bacteria.he vaccine for diphtheria is given in a single shot (along with vaccines for pertussis and tetanus) that is called DTaP. The DTaP vaccine is administered in a series at 2, 4, and 6 months of age, and then again at around 1 and 4 years of age.