1. Rabbits inoculated intravenously with non-hemolytic streptococci, while under the influence of full therapeutic doses of sodium salicylate, developed almost as many inflamed joints as the untreated controls similarly inoculated. 2. The salicylated rabbits, on the other hand, had a much higher proportion of mildly inflamed Joints than did the controls. 3. This anti-inflammatory action was mos...

The applicability to the non-hemolytic streptococci of the technique used for the extraction of a soluble precipitating substance from the hemolytic streptococci is demonstrated. With this substance as antigen, it is demonstrated by means of precipitation and complement fixation that the non-hemolytic streptococci form an antigenically distinct, but entirely heterogeneous group. Such cross-reac...

Of the 122 human oral bacterial strains tested from 11 genera, only streptococci and a few actinomyces exhibited coaggregation among the strains within their respective genera. Eight of the ten streptococci showed multiple intrageneric coaggregations, all of which were inhibited by galactosides. The widespread intrageneric coaggregation among the streptococci and the less extensive coaggregatio...

background and objectives: group b streptococci (gbs) is a major cause of neonatal and maternal infections. the aim of this study was to determine the serotype distribution and antibiotic resistance profile of gbs strains isolated from pregnant women in ardabil. materials and methods: antibiotic resistance of 56 gbs isolates was investigated using e-test strips and disk-diffusion method. seroty...

background and objectives: accurate designation of antimicrobial susceptibility pattern of the infecting microorganisms is an important crucial factor in making appropriate therapeutic decisions. macrolide, lincosamide and streptogramin b antibiotics are in a family, reserved as an alternative approach in treatment of resistant gram positive cocci. amongst them, clindamycin has been considered ...

Gingivitis is an inflammatory destructive disease mainly caused by microbial plaques. Gram-positive and gram-negative bacilli or cocci have been isolated from dental plaque and gingivitis. This study was going to isolate and characterize the pathogenic bacteria from gingival of 100 patients with oral gingivitis. Enriched and specific media used for isolation of bacteria. Identification of isola...

A 5 day topical kanamycin treatment of the dental gingival surfaces in institutionalized mentally retarded subjects significantly reduced the plaque mass on the tooth surfaces compared to a placeho treatment. This reduction occurred in the absence of any mechanical hygiene procedures and lasted for 4 or more weeks, which was longer than the kanamycin could have been expected to be present in th...

We previously found that tonsillar application of antigen induces a strong antibody response to Streptococcus sobrinus in saliva and blood plasma. Rabbits immunized against S. sobrinus by tonsillar application were highly resistant to experimental dental caries triggered by oral inoculation of living S. sobrinus organisms with sucrose. In the present study, we examined the reaction of S. sobrin...

OBJECTIVE The purpose of this study was to analyze the ability of septicemic and nonsepticemic isolates of group B streptococci (GBS) to inhibit in vitro the principal bacterial groups found in the normal bacterial flora of the female genital tract. METHODS The target groups were composed of 1) 10 strains each of the following: viridans streptococci, nonhemolytic streptococci (not group B or ...

A rapid test to detect the hydrolysis of sodium hippurate by beta-hemolytic streptococci within 2 h was developed. All group B streptococci tested were positive using this method and all other groups were negative.