Question

define diphtheria ....
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Answer 1

Answer:

A serious infection of the nose and throat that's easily preventable by a vaccine.

A sheet of thick, grey matter covers the back of the throat, making breathing hard.

Answer 2

Answer:

Diphtheria is a serious bacterial infection that usually affects the mucous membranes of your nose and throat. Diphtheria is extremely rare in the United States and other developed countries, thanks to widespread vaccination against the disease. Diphtheria can be treated with medications.