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The Journal of the Royal Society for the Promotion of Health, Vol. 117, No. 3, 160-163 (1997)
DOI: 10.1177/146642409711700307

Non-group A streptococci: are they pathogens in the throat?

M N H Chowdhury

Department of Microbiology College of Medicine and King Khalid University Hospital Riyadh Saudi Arabia

A.M. Kambal

Department of Microbiology College of Medicine and King Khalid University Hospital Riyadh Saudi Arabia

Y.A. Al-Eissa

Department of Paediatrics College of Medicine and King Khalid University Hospital Riyadh Saudi Arabia

M R A Khaliq

Department of Microbiology College of Medicine and King Khalid University Hospital Riyadh Saudi Arabia

I.H. Al-Ayed

Department of Paediatrics College of Medicine and King Khalid University Hospital Riyadh Saudi Arabia

A.M. Al-Sanie

Department of Paediatrics College of Medicine and King Khalid University Hospital Riyadh Saudi Arabia

A total of 3,184 paediatric patients with sporadic pharyngitis was studied at King Khalid University Hospital in Riyadh, Saudi Arabia. In addition, 478 children without pharyngitis who were matched for age and sex were included as controls. Group A ß-haemolytic streptococci (ßHS) were detected significantly more often among the children with pharyngitis than among the controls (8.4% vs 2.3%; p <0.0001). In contrast, total non-group A and group C ßHS were isolated at lower frequency from the sick than control children (0.9% vs 2.5% and 0.2% vs 1.2% respectively; p <0.01) while other non- group A ßHS such as groups B, G and F were each isolated in similar frequency from both the sick and control children. We conclude that non-group A ßHS appear not to be as important as aetiological agents of sporadic pharyngitis in these children.

Key Words: ß-haemolytic streptococci • children • epidemiology • pharyngitis


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