Medically reviewed by Lauren Schlanger, MD Strep throat is a highly contagious infection caused by Group A Streptococcus ...

Severe strep infections are on the rise in the U.S. A new study shows a sharp increase in cases of invasive group A strep, ...

strep throat, infected skin wounds or canker sores caused by a virus, as you may have had. An enlarged lymph node in the area of an infection (such as a swollen neck node during an ear infection ...

A sore throat is ... on either side of the neck. Sometimes only one node in the area is sore, which can cause a sore throat on one side. Some conditions that may lead to swollen lymph nodes ...

Most group A strep infections cause mild illnesses like strep throat — but when that bacteria spreads to the blood and deep ...

Those who experience strep throat multiple times a year may be a candidate for tonsillectomy. “According to the Academy of Otolaryngology Head and Neck Surgery, if an individual has documented strep ...

Strep throat is a bacterial infection in the throat and tonsils. Symptoms that include sore throat, red and swollen tonsils ... around the tonsils or in the neck, ear infections, kidney disease ...