A commercial blood agar slide (Streptocult, Orion Diagnostica) was used for preliminary identification of beta-hemolytic streptococci of groups A, C, and G in throat swab specimens. The sensitivity of the test was 93.6% and the specificity was 94.7%, as judged from 580 specimens. A model is suggested for routine processing of throat swab specimens, involving inoculation and reading of the slide...

One hundred thirty-seven isolates of beta-hemolytic streptococci were recovered from 623 pharyngeal cultures. Twenty-nine percent of these were group A, 10% were group B, 31% were group C, 11% were group F, 12% were group G, and 7% could not be grouped. The significance of non-group A isolates in pharyngitis could not be evaluated in the absence of viral and serological studies. Hemolytic strep...

1. In this study a series of experiments showing the antigenic relationship of type 10 and type 12 group A hemolytic streptococci is reported. Agglutinin, precipitin, and passive protection tests with unabsorbed and reciprocally absorbed antisera were employed to show that representative type 10 and 12 strains contain serologically identical M antigens but unrelated type-specific T antigens. 2....

BACKGROUND To investigate the carrier rates of group A beta-hemolytic Streptococci (GAS) in various seasons of the year in the upper respiratory tract of healthy children in day-care centers. METHODS In this descriptive study, a total of 1893 throat swabs obtained from healthy children 1-6 years old in 13 day-care centers were screened for beta-hemolytic Streptococci in Ankara, Turkey, betwee...

Aim: Streptococcus pyogenes (Group A Beta-hemolytic streptococci, GABHS) is one of the important bacterial pathogens in clinical microbiology. It often causes upper respiratory tract infections such as tonsillitis, pharyngitis, and laryngitis. also leads to complications acute rheumatic fever post-streptococcal glomerulonephritis. Early diagnosis treatment these will prevent suppurative non-sup...

Latex agglutination was compared with fluorescent-antibody staining with group A conjugate and Lancefield precipitation for grouping of beta-hemolytic streptococci. Latex agglutination correctly grouped 98.8% of 82 group A streptococci and more than 95% of 187 group B, C, or G streptococci. Occasional cross-reactions occurred between groups A and C and groups B and G.

Aim of this study was to compare uterine smears made using the Knudsen catheter, the cytology brush and a uterine culture swab with regard to diagnostic usefulness and the occurrence of neutrophils. Additionally correlation between culture results and the occurrence of neutrophils in uterine smears was investigated. Samples were collected from 340 mares, 81.5% of which were in estrus. Smears ma...