Two Streptococcus pyogenes emm types and several anaerobic bacterial species are associated with idiopathic cutaneous ulcers in children after community-based mass treatment with azithromycin
Fig 4
Photograph of a “tropical phagedenic ulcer” from a participant in the yaws eradication campaign.
This deep, exudative, and necrotizing ulcer was negative for T. pallidum sub pertenue and H. ducreyi DNAs by PCR and shotgun sequencing. DNAs for both F. necrophorum and Peptostreptococcaceae were detected by shotgun sequencing.