Journal of Antimicrobial Chemotherapy (2001) 47, 689-691
© 2001 The British Society for Antimicrobial Chemotherapy
Brief report |
Potentially virulent strains and high colony counts of group A ß-haemolytic streptococci in pharyngitis patients having a delayed recovery or a complication
a Department of General Practice, University Medical Center, Utrecht; b Department of Medical Microbiology and Infectious Diseases, Isala Clinics, Zwolle; c National Institute of Public Health and the Environment (RIVM), Bilthoven, The Netherlands
T serotyping and M and exotoxin genotyping were performed on strains from 367 streptococcal pharyngitis patients in Dutch general practice. Potentially virulent strains of group A ß-haemolytic streptococci, such as T1M1 and T3M3 subtypes and strains expressing speA and speC, and a high number of colony counts did not occur more frequently in the 166 (45%) more seriously ill patients, defined as those who showed a delayed recovery or a complication.
* Correspondence address. Zilverschoon 59, 8265 HE Kampen, The Netherlands. Tel: +31-383330909; Fax: +31-383317470; E-mail: szwart{at}knmg.nl
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