Invasive Group A Streptococcal Disease (IGAS)

Severe IGAS is a rapidly progressive disease. Chemoprophylaxis should be administered to contacts as soon as possible and preferably within 24 hours of case identification; however, it is still recommended for up to 7 days after the last contact with a severe IGAS case. Every case of IGAS, severe or not, requires review with an MHO.

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Communicable Disease Control Manual


Follow Up Required

Report to: Office of the Chief Medical Health Officer



Includes clinical or practice updates/changes regarding the disease for the past six months. These updates may not have been noted in the SOPs or guidelines. Any updates older than six months will be archived on this page.