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Strep throat is a disease that causes a sore throat (pharyngitis). It is an infection with a germ called Group A Streptococcus bacteria.
Pharyngitis - streptococcal; Streptococcal pharyngitis; Tonsillitis-strep
Strep throat is most common in children between ages 5 and 15, although anyone can get it.
Strep throat is spread by person-to-person contact with fluids from the nose or saliva. It commonly spreads among family or household members.
Symptoms appear about 2 to 5 days after coming in contact with the strep germ. They may be mild or severe.
Common symptoms include:
Other symptoms may include:
Some strains of strep throat can lead to a scarlet fever-like rash. The rash first appears on the neck and chest. It may then spreads over the body. The rash may feel rough like sandpaper.
The same germ that causes strep throat may also cause symptoms of a sinus infection or an ear infection
Many other causes of sore throat may have the same symptoms. Your health care provider must do a test to diagnose strep throat and decide whether to prescribe antibiotics.
A rapid strep test can be done in most health care provider offices. However, the test may be negative, even if strep is present.
If the rapid strep test is negative and your health care provider still suspects that the strep virus is causing the sore throat, a throat swab can be tested (cultured) to see if strep grows from it. Results will take 1 to 2 days.
Most sore throats are caused by viruses, not bacteria.
Sore throats should be treated with antibiotics only if the strep test is positive. Antibiotics are taken to prevent rare but more serious health problems, such as rheumatic fever.
Penicillin or amoxicillin are most often the first drugs tried. Antibiotics should be taken for 10 days, even though symptoms are often gone within a few days.
The following tips may help your sore throat feel better:
Symptoms of strep throat usually get better in about 1 week. Untreated, strep can lead to serious complications.
Other complications may include:
Call if you or your child develops the symptoms of strep throat. Also, call if symptoms do not get better within 24 - 48 hours of starting treatment.
Most people with strep can spread the infection to others until they have been on antibiotics for 24 - 48 hours. They should stay home from school, daycare, or work until they have been on antibiotics for at least a day.
Get a new toothbrush after two or three days, but before finishing the antibiotics. Otherwise, the bacteria can live on the toothbrush and re-infect you when the antibiotics are done. Also, keep your family's toothbrushes and utensils separate, unless they have been washed.
If repeated cases of strep still occur in a family, you might check to see if someone is a strep carrier. Carriers have strep in their throats, but the bacteria do not make them sick. Sometimes, treating them can prevent others from getting strep throat.
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Gerber MA, Baltimore RS, Eaton CB, et al. Prevention of rheumatic fever and diagnosis and treatment of acute Streptococcal pharyngitis: a scientific statement from the American Heart Association Rheumatic Fever, Endocarditis, and Kawasaki Disease Committee of the Council on Cardiovascular Disease in the Young, the Interdisciplinary Council on Functional Genomics and Translational Biology, and the Interdisciplinary Council on Quality of Care and Outcomes Research: endorsed by the American Academy of Pediatrics. Circulation. 2009 Mar 24;119(11):1541-51.
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Frye R, Bailey J, Blevins AE. Clinical inquiries. Which treatments provide the most relief for pharyngitis pain? J Fam Pract. 2011;60(5):293-294.
Shulman ST, Bisno AL, Clegg HW, et al. Clinical practice guideline for the diagnosis and management of group A streptococcal pharyngitis: 2012 update by the Infectious Diseases Society of America. Clin Infect Dis. 2012;55(10):e86-e102.
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