Health Care Encyclopedia
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Scarlet feverDefinition: Scarlet fever is a disease caused by an infection of the throat with group A beta-hemolytic streptococcal bacteria (strep throat).
Alternative Names: Scarlatina
Causes, incidence, and risk factors: Scarlet fever was once a very serious childhood disease, but now is easily treatable. The incubation period is short, generally 1-2 days. Illness typically begins with a fever and sore throat. It may be accompanied by chills, vomiting, abdominal pain, and malaise. The streptococcal bacteria produces a toxin that causes a rash that appears one to two days after the onset of illness. The rash usually first appears on the neck and chest, then spreads over the body. It is described as "sandpapery" in quality. The texture of the rash is more important than the appearance in confirming the diagnosis. The rash can last for over a week. As the rash fades, peeling (desquamation) may occur around the finger tips, toes, and groin area. The main risk factors is infection with the bacteria that causes�strep throat. A history of strep throat or scarlet fever in the community, neighborhood, or school may increase the risk of infection.
Symptoms: - Sore throat
- Fever
- Vomiting
- Rash on neck and chest
- Rough "sandpaper" feel to the skin
- Peeling (desquamation) of the finger tips, toes, and groin
- Swollen, red tongue (strawberry tongue)
- Pastia's lines (bright red color in the creases of the underarm and groin)
- Chills
- Headache
- Generalized discomfort (malaise)
- Abdominal pain
- Muscle aches
Signs and tests: - Physical examination
- Throat culture positive for Group A Strep
- Rapid antigen detection (throat swab)
Treatment: The treatment of scarlet fever is the same as the treatment of strep throat -- antibiotic therapy to eliminate the bacteria that causes this infection from the throat. This is crucial to preventing rheumatic fever, the most feared complication of strep throat and scarlet fever.
Expectations (prognosis): With proper antibiotic treatment, the symptoms of scarlet fever should resolve quickly (though the rash can last for up to 2-3 weeks before it is fully resolved).
Complications: Complications are rare with proper treatment. These can include:
Calling your health care provider: Call your health care provider if symptoms of scarlet fever develop, if symptoms do not subside 24 hours after beginning antibiotic treatment, or if new symptoms develop.
Prevention: Bacteria are spread by direct contact with infected persons or by droplets exhaled by an infected person. Avoid contact with infected persons.
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| Review Date: 10/27/2005
Reviewed By: Daniel Rauch, MD, FAAP, Director, Pediatric Hospitalist Program, Associate Professor of Pediatrics, NYU School of Medicine, New York, NY. Review provided by VeriMed Healthcare Network.
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