Diphtheria is a serious bacterial infection caused by Corynebacterium diphtheriae. It primarily affects the nose and throat, forming a thick gray membrane, but can also involve the skin. While rare in vaccinated populations, it can be life-threatening if untreated.
Transmission methods vary. Please consult CDC or WHO resources for specific information.
Contagious Period: Varies by disease
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This event envelope contains reports on diphtheria in Guinea.
Source: BEACON - View Full Report
This event envelope contains reports on diphtheria in Australia.
Source: BEACON - View Full Report
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Global disease surveillance and guidelines from the World Health Organization
View WHO Resources →Disease information on Virus Watcher is reviewed by our Chief Epidemiologist, a former CDC lead analyst for FluSight forecasting. Outbreak data is aggregated from verified sources including BEACON, ProMED, WHO, CDC, and 50+ national health agencies. This information is for educational purposes and should not replace professional medical advice.
Last reviewed: 2026-04-19
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