Streptococcus pyogenes, Group A
Gram positive cocci in chains, beta-hemolytic
Reservoir is human skin and oropharynx/mucous membranes.
Known to cause severe disease in pregnant women both antepartum, intrapartum and post partum 'puerperal sepsis'
Exhaustive and fascinating list.
Most common manifestations are:
Tonsillopharyngitis ("Strep throat")
Skin infections (impetigo, erysipelas, cellulitis)
Other invasive infections:
Toxic shock syndrome
Other sterile space infections
Post-infectious immunologically mediated phenomena such as glomerulonephritis and rheumatic fever
Contact and droplet precautions for invasive disease for the first 24hrs of antimicrobial therapy or after last debridement, otherwise no precautions.
Post-exposure prophylaxis may be indicated. Invasive disease is a reportable condition