We observed late-onset rashes in patients with group A beta-hemolytic streptococcal (GAS) pharyngitis. Of 1028 patients with GAS pharyngitis, which was principally treated with amoxicillin, we evaluated those who developed a late-onset rash and excluded those with scarlet fever alone. Twenty-one patients developed a rash (2.0%, 95% confidence interval, 1.3-3.1%), 7 to 20 days (median, 8 days) a...

We evaluated 2401 patients with suspected streptococcal pharyngitis with the Culturette 10-minute Group A Strep ID test during a 6-month period in order to determine its suitability for rapid diagnosis in a busy private office practice. Duplicate throat swabs were obtained for each child, and latex agglutination was performed within 15 minutes. In children with negative latex agglutination resu...

Streptococcus mutans is normally alpha- or gamma-hemolytic on blood agar plates. However, three recently isolated S. mutans strains were observed to elicit beta-hemolysis. The production and nature of a hemolytic substance were studied.

An unimmunized 19-month-old child presented with a retropharyngeal abscess and coincident varicella infection. The abscess resolved with operative drainage. This is the first published report of this connection, although varicella is known to be associated with abscesses in general. Practitioners should be aware that cervical abscesses may complicate varicella infections.

In the study of upper respiratory infections, nose and throat cultures for beta hemolytic streptococci3 are essential. Since group A streptococci are implicated in human respiratory infections more than other groups, it is important that streptococci recovered on culture be identified as belonging to group A or not. The finding of streptococci which belong to groups other than A in the nose or ...

BACKGROUND The current resistance pattern of GABHS (group-A beta-hemolytic streptococci) in India has not been discussed. AIM To fill the above-mentioned void, we planned this study to determine the prevalence and degree of antibacterial resistance in GABHS isolates. SETTINGS AND DESIGN Children with acute pharyngo-tonsillitis who had not received antibiotic in the preceding week, attending...

beta-Hemolytic Lancefield group G Streptococcus dysgalactiae and Streptococcus canis cannot be distinguished when only Lancefield typing is performed. Phenotypic testing and 16S rRNA gene sequencing identified S. canis associated with ulcer infections in dog owners. Because S. canis may be incorrectly identified (published biochemical descriptions are inconsistent), there may be an underestimat...

Compartment syndrome, the acute elevation of pressure within the fascial compartment of a muscle above that needed for capillary perfusion, is almost always associated with trauma. Infection, however, has been reported to cause this pressure phenomenon as well, as can excessive exercise, which is simply repeated microtrauma. Infectious causes of compartment syndrome have been previously reporte...

Ten strains of beta-hemolytic streptococci were tested for elimination of resistance to macrolide antibiotics, tetracycline, and chloramphenicol. Six of the strains lost resistance after cultivation at 41 C or addition of acriflavine (0.2 mug/ml). These results suggest that determinants governing resistance to these antibiotics are located on extrachromosomal genetic elements (plasmids) that ar...

Group A beta-hemolytic streptococcus (GABHS) is the most common bacterial cause of acute pharyngitis. Clinical criteria alone are not reliable enough to diagnose GABHS pharyngitis. Microbiological-testing is required for correct diagnosis. Although a throat swab culture remains the gold standard for documenting the presence of GABHS, a significant disadvantage of the culture is the delayed time...