Strep throat is a throat infection caused by group A streptococcus bacteria. It is an illness most often seen in children and teenagers. Up to 30 percent of illnesses involving a
sore throat in children between the ages of 5 and 15 are the result of strep throat. Adults and infants can also get strep throat, although it is less common. Up to 10 percent of adults who seek medical care for a sore throat are diagnosed with strep throat.
In addition to age, there are certain factors that increase a person's chances for developing strep throat. These other risk factors include:
- Certain times of the year. Strep throat is more common during late fall, winter and early spring.
- Spending time in crowded places, such as schools, daycares, dormitories, or households.