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2. Causes: The Spread of the Bacteria

One way to acquire the illness is by inhaling droplets in the air after someone sneezes or coughs. Diphtheria spreads quickly this way, especially in crowded environments. Some people who have the Corynebacterium diphtheriae bacteria that causes diphtheria in their respiratory system do not know it because they have no symptoms, but they can spread it to others if they cough or sneeze.

bacteria diphtheria

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