Optimal site of throat swab for the isolation of beta-hemolytic streptococci.
10.3346/jkms.1993.8.6.453
- Author:
Seon Ju KIM
1
Author Information
1. Department of Clinical Pathology, Capital Armed Forces Hospital, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Throat culture;
Optimal site;
beta-hemolytic streptococci;
Tonsillar fossae;
Posterior pharynx
- MeSH:
Bacteriological Techniques;
Child;
Humans;
Pharynx/*microbiology;
Streptococcus/*isolation & purification
- From:Journal of Korean Medical Science
1993;8(6):453-457
- CountryRepublic of Korea
- Language:English
-
Abstract:
The optimal site for the isolation of beta-hemolytic streptococci (BHS) from throat cultures was investigated in 164 healthy elementary school children. All throat cultures were streaked onto duplicate blood agar plates (BAP), one of which was taken from the tonsillar fossae and the other from the posterior pharynx. BHS were isolated in cultures from 56 (34.2%) of the children. BHS were more frequently recovered from the tonsillar fossae than from the posterior pharynx (54 vs. 47; both sites, 45; tonsillar fossae only, 9; posterior pharynx only, 2; P<0.0001). There were significantly more numerous colonies in the tonsillar fossae than in the posterior pharynx (p<0.01). To conclude, the tonsillar fossae are more optimal sites of throat cultures to isolate BHS than the posterior pharynx.
