Sensitive Test for Lactic-streptococcal Agglutinins

Streptococcal Agglutinins in Rheumatic Fever.

Although considerable evidence has accumulated that rheumatic fever is a streptococcal infection, attempts to demonstrate specific streptococcal agglutinins in the serums of patients with tWis disease have met with only a moderate degree of success. Tunnicliff (1) performed agglutination reactions with the serums of twelve rheumatic fever patients against strains of Micrococcus rheumaticus and ...

A modified test for Brucella agglutinins.

0.1% Protamine sulphate in normal (0.85% w/v) saline has been used as a diluent in Brucella serology instead of saline as such. The use of protamine sulphate in this concentration has obviated the need for performing the modified Coombs test to detect non-agglutinating Brucella antibodies. This method has been used in the Microbiological Diagnostic Unit of the University of Melbourne in the rou...

Saline test for streptococcal haemolysin.

Micro test for streptococcal anti-deoxyribonuclease B.

A methyl green decolorization micro test for the determination of streptococcal anti-deoxyribonuclease B titers in serum is described. The micro test was compared with an alcohol precipitation macro test on 112 human sera. The anti-deoxyribonuclease B titers agreed within one dilution step for 85.7% of the 112 sera examined by both techniques. Both tests were about equal in the detection of tit...

Rapid Diagnostic Test for Streptococcal Throat Infection in Egyptian Children

Background: Acute streptococcal pharyngitis represents a high prevalence in developing countries responsible of morbidity and mortality. Difficulty of prompt diagnosis is responsible for either inadequate therapy and subsequent rheumatic heart disease and renal failure, or abuse of antibiotics. Group AB hemolytic streptococcus (GABHS) detection by rapid tests is useful due to its rapidity and r...