Necrotizing fasciitis: a rare manifestation of late-onset neonatal group B streptococcal infection.

Preterm infants have a risk factor of developing late-onset group B streptococcal (GBS) infection. A 62-day-old infant who was a former 25-week male infant presented with fever and an erythematous, warm and tender, soft tissue swelling in the right submandibular region. He was diagnosed with cellulitis. Within 72 hours, his lesion had rapidly progressed to necrotizing fasciitis. His blood culture grew penicillin-sensitive GBS. This reported case illustrates necrotizing fasciitis as a rare manifestation of late-onset neonatal GBS infection.