Incidence and Clinical Outcomes of Streptococcus anginosus in Acute Complicated Sinusitis: A Pediatric Cohort.

We conducted a retrospective cohort study of 160 hospitalized children admitted for acute complicated sinusitis and compared children with S anginosus-associated infection to children with other or no pathogens identified. The incidence of S anginosus-associated infections increased 12% per year, and infections with S anginosus are associated with increased morbidity.