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Disease intelligence sheet
Diphtheria
Curated desk background for reporters who need the pathogen, transmission, and outbreak frame fast.
Pathogen / agent: Corynebacterium diphtheriae
Transmission: Respiratory droplets and close contact
Reservoir / vector: Humans are the reservoir.
Incubation: Usually 2 to 5 days.
Severity: Can be fatal without antitoxin, antibiotics, and strong clinical support.
Diagnostics: Clinical suspicion plus culture or PCR and toxin-focused confirmation when available.
Treatment: Antitoxin, antibiotics, and airway management when needed.
Prevention: Routine vaccination and rapid outbreak control around cases and carriers.
Vaccine / prevention status: Routine vaccination works, so major diphtheria stories usually reflect immunization failure, conflict, or system breakdown.
Symptoms And Clinical Pattern
- Sore throat, fever, and cervical swelling.
- A gray pseudomembrane is the classic severe respiratory sign.
- Toxin-mediated cardiac and neurologic complications drive much of the danger.
Official Background Links
Current Story Files
No active tracked stories are linked to this disease in the current run.
Why Reporters Care
Why this keeps becoming news: Diphtheria is a strong communications disease because it turns abstract vaccination decline into immediately legible airway and mortality risk.
What journalists often get wrong: Coverage often treats it as an antique disease reappearing out of nowhere rather than as a predictable sign of low coverage and disrupted health systems.
- Suspected and confirmed cases, deaths, and age groups.
- Antitoxin availability and outbreak-control capacity.
- Vaccination coverage and whether the outbreak is concentrated in one displaced or under-served population.
Last Major Outbreak On File
African Region multi-country outbreak | Eight WHO African Region member states | 2025
WHO reported 20,412 suspected diphtheria cases and 1,252 deaths across eight African countries in 2025, with Nigeria carrying the largest share of the burden.
Source: WHO Disease Outbreak News (2025-11-21)
Desk Notes And Historical Signals
Desk note: Diphtheria should function as a vaccination-systems alarm bell in this product.
Research caveats: Case definitions and laboratory confirmation can lag badly in large, stressed outbreaks.
- The scale and prolonged under-immunized burden make this more than a one-country story.