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Diphtheria

A guide to toxigenic respiratory and cutaneous disease, clinical-first diagnosis, antitoxin, antibiotics, and contact management.

diphtheria

MONDO:0005504Public QA completeSource-bound · 4

Disease at a glance

Start with the essentials, then explore the patient and research views.

Public revision · 19ee05d07071

Disease class
Diphtheria is caused mainly by infection with toxin-producing Corynebacterium diphtheriae.
Core mechanism
It can spread through respiratory secretions or contact with infected skin lesions.
Genes or cause
Diphtheria toxin can cause local tissue injury and cardiac or neurologic complications.
Typical features
Respiratory disease can present with sore throat, fever, and a firmly adherent gray pseudomembrane.
Variability
Airway obstruction, myocarditis, and neuritis can be life-threatening and require close monitoring.
Diagnosis
When respiratory diphtheria is clinically suspected, presumptive treatment begins without waiting for confirmation.
Management
When possible, throat or skin cultures are collected before antibiotics and isolates are tested for toxin production.
Treatment and research
Respiratory diphtheria is treated with diphtheria antitoxin plus antibiotics.
Reading evidence
Antitoxin neutralizes unbound toxin, making prompt administration important.
Key caution
Erythromycin or penicillin is used while airway, cardiac, and neurologic status are managed.

For patients and families

A structured guide for understanding the disease and preparing for clinical conversations.

At a glance

Diphtheria is caused mainly by infection with toxin-producing Corynebacterium diphtheriae.

Respiratory disease can present with sore throat, fever, and a firmly adherent gray pseudomembrane.

How the disease works

It can spread through respiratory secretions or contact with infected skin lesions.

Diphtheria toxin can cause local tissue injury and cardiac or neurologic complications.

Why experiences vary

Airway obstruction, myocarditis, and neuritis can be life-threatening and require close monitoring.

Diagnosis and management

When respiratory diphtheria is clinically suspected, presumptive treatment begins without waiting for confirmation.

Treatment status

When possible, throat or skin cultures are collected before antibiotics and isolates are tested for toxin production.

Respiratory diphtheria is treated with diphtheria antitoxin plus antibiotics.

Reading clinical trials

Isolation, documentation of bacterial clearance, and testing, prophylactic antibiotics, and vaccination review for close contacts are required.

Topics for a clinical visit

Clinical discussion should address disease form, airway risk, specimen collection, antitoxin timing, and contact measures separately.

Medical notice

This material is for disease education and is not a personal diagnosis or treatment instruction.

Evidence and sources

A trial registry status does not establish efficacy or regulatory approval.