How are group A streptococci spread?
Group A streptococci are spread by direct contact with secretions from the nose and throat of infected persons or by contact with infected wounds or sores on the skin. The risk of spreading the infection is highest when a person is ill, such as with “strep throat” or an infected wound. Persons who carry the bacteria but have no symptoms are much less contagious although they can pass the bacteria to someone else. Treatment of infected persons with an appropriate antibiotic for 24 hours or longer generally eliminates their ability to spread the bacteria. Household items like plates, cups, or toys probably do not play a major role in disease transmission.