Diphtheria is an acute infectious disease caused by the bacteria Corynebacterium diphtheriae.
Causes, incidence, and risk factorsDiphtheria spreads through respiratory droplets (such as those produced by a cough or sneeze) of an infected person or someone who carries the bacteria but has no symptoms. Diphtheria can also be spread by contaminated objects or foods (such as contaminated milk).
The bacteria most commonly infects the nose and throat. The throat infection causes a gray to black, tough, fiber-like covering, which can block the airways. In some cases, diphtheria may first infect the skin, producing skin lesions.
Once infected, dangerous substances called toxins, produced by the bacteria, can spread through your bloodstream to other organs, such as the heart, and cause significant damage.
Because of widespread and routine childhood DPT immunizations, diphtheria is now rare in many parts of the world. There are fewer than five cases of diphtheria a year in the United States.
Risk factors include crowded environments, poor hygiene, and lack of immunization.
SymptomsSymptoms usually occur 2 to 5 days after you have come in contact with the bacteria.
Note: There may be no symptoms.
Signs and testsThe health care provider will perform a physical exam and look inside your mouth. This may reveal a gray to black covering (pseudomembrane) in the throat, enlarged lymph glands, and swelling of the neck or larynx.
Tests used may include:
If the health care provider thinks you have diphtheria, treatment should be started immediately, even before test results are available.
Diphtheria antitoxin is given as a shot into a muscle or through an IV (intravenousline). The infection is then treated with antibiotics, such as penicillin and erythromycin.
People with diphtheria may need to stay in the hospital while the antitoxin is being received. Other treatments may include:
Anyone who has come into contact with the infected person should receive an immunization or booster shots against diphtheria. Protective immunitylasts only 10 years from the time of vaccination, so it is important for adults to get a booster of tetanus-diphtheria (Td) vaccine every 10 years.
Those without symptoms who carry diphtheria should be treated with antibiotics.
Expectations (prognosis)Diphtheria may be mild or severe. Some people may not have symptoms. In others, the disease can slowly get worse.
The Death Rate is 10%. Recovery from the illness is slow.
ComplicationsThe most common complication is inflammation of the heart muscle (myocarditis). The nervous system is also frequently and severely affected, which may result in temporary paralysis.
The diphtheria toxin can also damage the kidneys.
Calling your health care providerContact your health care provider if you have come in contact with a person who has diphtheria.
Remember that diphtheria is a rare disease. Diphtheria is also a reportable disease, and any cases are often publicized in the newspaper or on television. This helps you to know if diphtheria is present in your area.
PreventionRoutine childhood immunizations and adult boosters prevent the disease. See: Diphtheria immunization(vaccine)
ReferencesAmerican Academy of Pediatrics Committee on Infectious Diseases. Recommended immunization schedules for children and adolescents -- United States, 2008. Pediatrics. 2008;121(1):219-220.
Centers for Disease Control and Prevention. Recommended adult immunization schedule---United States, 2009. MMWR. January 9, 2009;57(53);Q1-Q4.
Centers for Disease Control and Prevention. Recommended immunization schedules for persons aged 0 through 18 years---United States, 2009. MMWR. January 2, 2009;57(51&52);Q1-Q4.
Diphtheria is an acute infectious disease caused by the bacteria Corynebacterium diphtheriae.
Causes, incidence, and risk factorsDiphtheria spreads through respiratory droplets (such as those produced by a cough or sneeze) of an infected person or someone who carries the bacteria but has no symptoms. Diphtheria can also be spread by contaminated objects or foods (such as contaminated milk).
The bacteria most commonly infects the nose and throat. The throat infection causes a gray to black, tough, fiber-like covering, which can block the airways. In some cases, diphtheria may first infect the skin, producing skin lesions.
Once infected, dangerous substances called toxins, produced by the bacteria, can spread through your bloodstream to other organs, such as the heart, and cause significant damage.
Because of widespread and routine childhood DPT immunizations, diphtheria is now rare in many parts of the world. There are fewer than five cases of diphtheria a year in the United States.
Risk factors include crowded environments, poor hygiene, and lack of immunization.
SymptomsSymptoms usually occur 2 to 5 days after you have come in contact with the bacteria.
Note: There may be no symptoms.
Signs and testsThe health care provider will perform a physical exam and look inside your mouth. This may reveal a gray to black covering (pseudomembrane) in the throat, enlarged lymph glands, and swelling of the neck or larynx.
Tests used may include:
If the health care provider thinks you have diphtheria, treatment should be started immediately, even before test results are available.
Diphtheria antitoxin is given as a shot into a muscle or through an IV (intravenousline). The infection is then treated with antibiotics, such as penicillin and erythromycin.
People with diphtheria may need to stay in the hospital while the antitoxin is being received. Other treatments may include:
Anyone who has come into contact with the infected person should receive an immunization or booster shots against diphtheria. Protective immunitylasts only 10 years from the time of vaccination, so it is important for adults to get a booster of tetanus-diphtheria (Td) vaccine every 10 years.
Those without symptoms who carry diphtheria should be treated with antibiotics.
Expectations (prognosis)Diphtheria may be mild or severe. Some people may not have symptoms. In others, the disease can slowly get worse.
The death rate is 10%. Recovery from the illness is slow.
ComplicationsThe most common complication is inflammation of the heart muscle (myocarditis). The nervous system is also frequently and severely affected, which may result in temporary paralysis.
The diphtheria toxin can also damage the kidneys.
Calling your health care providerContact your health care provider if you have come in contact with a person who has diphtheria.
Remember that diphtheria is a rare disease. Diphtheria is also a reportable disease, and any cases are often publicized in the newspaper or on television. This helps you to know if diphtheria is present in your area.
PreventionRoutine childhood immunizations and adult boosters prevent the disease. See: Diphtheria immunization(vaccine)
ReferencesMacGregor RR. Corynebacterium diphtheriae. In: Mandell GL, Bennett JE, Dolan R, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 7th ed. Orlando, FL: Saunders Elsevier; 2009:chap 205.
Reviewed ByReview Date: 12/15/2010
David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc., and Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine.
can you die from Diphtheria?
The virulence factor for diphtheria is an exotoxin named diphtheria exotoxin.
No, the noun 'diphtheria' is a common noun, a word for any instance of diphtheria.
The bacterium that causes the infection diphtheria.
Diphtheria is an infectioncaused by the bacterium Corynebacterium diphtheriae.
Diphtheria is an infectioncaused by the bacterium Corynebacterium diphtheriae.
Diphtheria is an infectioncaused by the bacterium Corynebacterium diphtheriae
Diphtheria is an infectioncaused by the bacterium Corynebacterium diphtheriae.
Diphtheria is an infectioncaused by the bacterium Corynebacterium diphtheriae.
Diphtheria is an infectioncaused by the bacterium Corynebacterium diphtheriae.
Diphtheria is an infectioncaused by the bacterium Corynebacterium diphtheriae.
Diphtheria is communicable.