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...

The API 20S system (Analytab Products, Plainview, N.Y.) and the AutoMicrobic Gram-Positive Identification system (GPI; Vitek Systems, Hazelwood, Mo.) were evaluated for their capacity to identify the non-beta-hemolytic streptococci and aerococci to the species level. The 20S system identified 86% (six of seven strains) of nonhemolytic group B streptococci, whereas 100% of the same group B strep...

This study was undertaken as the result of a discussion of the relationship of toxemia of pregnancy to acute nephritis. It was thought that if hemolytic streptococcal infection played any such part in toxemia as it has been shown to play in many instances of acute nephritis, this might perhaps be detected by use of the antifibrinolysin test. It was first shown by Tillett and Garner4 in 1933 tha...

Two immunologically reactive polysaccharides have been isolated from the cell walls and from culture filtrates of a filamentous alpha-hemolytic streptococcus provisionally designated capsular type 83. Both polysaccharides were purified by diethylaminoethyl-cellulose chromatography. Analysis indicates that the capsular polysaccharide consists of galactose and phosphorus, whereas the cell wall po...

OBJECTIVE To examine whether penicillin treatment success for group A beta-hemolytic streptococcal tonsillopharyngitis is influenced by patient age, number of days ill prior to initiation of treatment, number of prior episodes, season, total dosage (milligrams per kilogram), and frequency of administration (2 vs 3 times daily). METHODS Four hundred seventy-eight children, adolescents, and you...

Antibiotics are often prescribed to treat infections caused by group B Streptococcus; however, inappropriate use of antibiotics can develop resistance. Because this, the research was carried out with aim evaluating in vitro effect hydroalcoholic extract Caesalpinia spinosa (Molina) Kuntze known as Taya or Tara on viability β-hemolytic streptococci; an experimental investigation increasing stimu...

Cultures of a hemolytic streptococcus isolated from a human case of erysipelas were tested for ability to produce lesions by injecting various amounts intradermally in shaved rabbits. Severe lesions could be developed at will in this way despite the fact that intravenous or intraperitoneal inoculations of large doses of the cultures failed to kill. The lesions were of two sorts, phlegmonous and...

1. A skin test with a crude bacterial extract prepared from group C (Lancefield) hemolytic streptococci was used as a means of detecting possible carriers of the streptococcus causing epizootic lymphadenitis in guinea pigs. A positive test similar to a positive tuberculin reaction was considered presumptive evidence of present or recent infection with this streptococcus. 2. 20 positive reactors...

A 48-year-old obese man with a history of hypertension, coronary artery disease, and status post–quadruple bypass presentedwithan8-monthhistoryofpainfululcerationon therightmidback.The initial lesionwasdescribedasa4-cm square area of eroded eczematous dermatitis, which later developed 2 areas of ulceration that worsened despite various treatments, includingoral and intralesional corticosteroids...