Diphtheria (pronounced "diff-THEER-ee-uh") is an infectious disease caused by a bacterium called Corynebacterium diphtheriae. It can be treated by special drugs, or by antibiotics. There is a vaccine which can prevent diphtheria.
Diphtheria can cause serious problems, like:
- Inflammation of the heart, which can lead to death
- Different forms of paralysis, by poisoning of nerve cells
- Problems with the kidneys
Signs and symptoms[change | change source]
- A thick, gray membrane covering the throat and tonsils
- A sore throat and a hoarse voice
- Swollen glands (enlarged lymph nodes) in the neck
- Trouble breathing, or fast breathing
- Nasal discharge
- Fever and chills
- Malaise (feeling very tired and not having any energy)
In some people, infection with diphtheria-causing bacteria causes only a mild illness. These people may have no obvious signs or symptoms. Infected people who do not know they have diphtheria are called carriers of diphtheria, because they can spread the infection without being sick themselves.
Cutaneous diphtheria[change | change source]
A second type of diphtheria can affect the skin. This type of diphtheria is called cutaneous diphtheria. It causes pain, redness, and swelling on the skin, like other bacterial skin infections. People with cutaneous diphtheria may get ulcers, covered by a gray membrane, on their skin.
Mechanism[change | change source]
References[change | change source]
- Freeman, Victor J (1951). "Studies on the virulence of bacteriophage-infected strains of Corynebacterium diphtheriae". Journal of Bacteriology. 61 (6): 675–688. doi:10.1128/JB.61.6.675-688.1951. PMC 386063. PMID 14850426.
- Freeman VJ, Morse IU; Morse (1953). "Further observations on the change to virulence of bacteriophage-infected avirulent strains of Corynebacterium Diphtheriae". Journal of Bacteriology. 63 (3): 407–414. doi:10.1128/JB.63.3.407-414.1952. PMC 169283. PMID 14927573.