Strep throat is a bacterial infection that causes inflammation and pain in the throat. This common condition is caused by group A Streptococcus bacteria. It is also called as streptococcal pharyngitis. Strep throat can affect children and adults of all ages. This infection usually occurs in children 5 to 15 years old. Children under 3 years old seldom get strep throat.Strep is most prevalent in late fall, winter, and early spring, when children are in schools and daycare centers. Very common About 15 percent of sore throats are caused by Streptococcus bacteria. Spreads easily Treatable by a medical professional Requires a medical diagnosis Lab tests or imaging often required Short-term: resolves within days to weeks How it spreads ? By airborne respiratory droplets (coughs or sneezes). By saliva (kissing or shared drinks). Common symptoms include sore throat, fever and swollen lymph nodes in the neck. Rarely, complications can involve the heart or kidneys. Treatment is important to reduce complications. Oral antibiotics like penicillin, amoxicillin, cephalexin or azithromycin are commonly used. Other medicines such as acetaminophen or ibuprofen can help with pain . Consult a doctor for medical advice.