Strep throat is the most common of the GAS infections. Following are some of the symptoms of strep throat:
Symptoms of other GAS infections depend on the type of infection and the part of the body that is involved. Impetigo, for example, causes an infection of the top skin layers. Cellulitis is a more serious infection that involves deeper skin layers and underlying tissue. Pneumonia is a lung infection, and septic arthritis attacks joints.
Some GAS infections, especially blood infections, can be severe. These infections can be associated with streptococcal toxic shock syndrome. In this syndrome, blood pressure drops. The liver, kidney, lungs, and clotting system fail to work properly.