Dr. Ira Shah
Consultant Pediatrician, B.J.Wadia Hospital for Children, Mumbai, India
First Created: 02/06/2001  Last Updated: 08/01/2015

Patient Education

What is diphtheria?

Diphtheria is an infection caused by a bacteria known as corynebacterium diphtheriae (Klebs - Loeffler bacillus).

Is diphtheria common?

Diphtheria is present worldwide and in the past has caused a lot of deaths and epidemics. However, with the advent of the DPT vaccine and universal immunization of all children with DPT incidence of diphtheria has gone down considerably. The disease is now seen in unvaccinated children from developing countries.

How is diphtheria transmitted?

Diphtheria bacteria can survive only in human beings. Diphtheria spreads by sneezing, coughing from an affected person (patient having diphtheria bug) to a susceptible patient. The peak incidence is during autumn and winter months. The disease is highly infectious and the patient remains infected with the ability to transmit the germ for 2 weeks or more.

What are the symptoms of diphtheria?

Diphtheria bacteria affect the nose, tonsils, throat, eye, and windpipe (breathing passage). Patients present with mild fever, cold, sore throat, and difficulty in swallowing. Within 1-2 days, a white membrane appears on tonsils that may spread. The glands in the neck become swollen and enlarged giving a swollen neck appearance also known as "Bull neck". With severe disease, respiratory collapse and shock can occur. Due to the membrane spread, difficulty in breathing can also occur leading to suffocation.

How is the diagnosis of diphtheria made?

The diagnosis of diphtheria is based on clinical examination and by isolating the germ from the throat.

What is the treatment of diphtheria?

Anti diphtheric serum (ADS) or Diphtheria immune globulin (DIG) neutralizes the diphtheria toxin that is responsible for the disease. It should be given as early as possible. Penicillin or erythromycin should be given 7-10 days to prevent the organism from persisting behind.

Patients with diphtheria should be hospitalized, isolated, and treated with urgency. A careful monitoring of respiratory collapse, breathing difficulty, and heart failure should be done. In patients with severe breathing difficulty, a life-saving procedure called tracheostomy is required. This is a procedure by which a hole or opening is created straight in the windpipe to bypass the obstruction in the throat. Patients need bed rest for 2-3 weeks and need good nutritional support.

What are other complications of diphtheria?

Even after initial weeks of infection, diphtheria may lead to heart, nervous system, kidney, and liver problems. Patients may present with heart failure, paralysis, kidney failure, and hepatitis even after several weeks of initial infection. Hence early diagnosis and immediate treatment are essential.

How is diphtheria prevented?

Diphtheria is prevented by the DPT vaccine. All children should be given DPT vaccine at 6, 10, and 14 weeks of age with 2 booster doses at 18 months and 5 years of age.

For persons in contact with diphtheria patients, if the contact has been immunized with DPT, one need not worry and only a booster dose of diphtheria toxoid may be required.

If the contact is not given the vaccine, then the person should receive erythromycin or penicillin to prevent the disease.

Diphtheria Diphtheria https://www.pediatriconcall.com/show_article/default.aspx?main_cat=infectious-diseases&sub_cat=diphtheria&url=diphtheria-patient-education 2015-08-01
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