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James C. Turner, MD; Gregory F. Hayden, MD; Daria Kiselica, MD; Jacob Lohr, MD; C. F. Fishburne, MD; Deborah Murren, MSN

JAMA. 1990;264(20):2644-2647.

Abstract
Throat cultures were performed throughout 2 school years to determine whether non—group A β-hemolytic streptococci (NGA BHS) could be isolated more frequently in 232 college students who had symptomatic pharyngitis than from 198 age-matched controls with noninfectious problems. Duplicate throat swabs were inoculated onto plates that contained sheep blood agar, one plate being incubated in a 5% CO₂ atmosphere and the other in an anaerobic environment. The BHS were grouped using latex agglutination. Among the NGA BHS, only those from group C were isolated significantly more often among the patients compared with the controls (26% vs 11%). Quantitative colony counts of isolates of group C BHS were generally higher among patients than controls. Patients with group C BHS had fever, exudative tonsillitis, and anterior cervical adenopathy significantly more frequently than did patients who had throat cultures that were negative for group C BHS. Group C BHS were epidemiologically associated with endemic pharyngitis in this college student population.

(JAMA. 1990;264:2644-2647)

Author Affiliations
From the Thomson Student Health Center, University of South Carolina, Columbia (Dr Turner); the Departments of Pediatrics (Drs Hayden and Lohr) and Student Health (Drs Kiselica and Fishburne, and Ms Murren), University of Virginia Health Sciences Center, Charlottesville.

Footnotes
Reprint requests to Thomson Student Health Center, University of South Carolina, Columbia, SC 29208 (Dr Turner).

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