Group A streptococcal necrotizing fasciitis after varicella: report of two cases.

The most common complication in children with varicella is cutaneous superimposed infection with pyogenic bacteria. The association between varicella and group A beta-hemolytic streptococci (GABHS) necrotizing fasciitis has been recorded for over 50 years. Two cases with the specific problems are presented here together with a review of the literature. This infection is caused by GABHS superinfection of the skin lesions due to chickenpox. It can be unrecognized or late-diagnosed, with fatal consequences. Because of prompt recognition and aggressive surgical and medical treatment, the two patients survived without loss of the affected limb.