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Beta-haemolytic streptococci in saliva.

P W Ross

    The Journal of Hygiene
    |September 1, 1971
    PubMed
    Summary

    Beta-hemolytic streptococci were quantified in children

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    Area of Science:

    • Microbiology
    • Pediatrics
    • Infectious Diseases

    Background:

    • Beta-hemolytic streptococci are significant pathogens causing pharyngitis.
    • Accurate identification and quantification are crucial for diagnosis and management.

    Purpose of the Study:

    • To quantify beta-hemolytic streptococci in different pediatric groups.
    • To compare the efficacy of different sampling methods for isolating these bacteria.

    Main Methods:

    • Viable counts of beta-hemolytic streptococci in saliva were determined for four groups of children.
    • Groups included those with streptococcal sore throat, non-streptococcal sore throat, carriers, and healthy controls.
    • Throat swab, sublingual swab, and saliva culture methods were compared for isolation efficiency.

    Main Results:

    • Mean counts of 1.4 x 10^6/ml and 2.5 x 10^5/ml were observed in children with streptococcal sore throat and carriers, respectively.
    • Saliva culture demonstrated superior efficiency in isolating beta-hemolytic streptococci compared to throat and sublingual swabs.

    Conclusions:

    • Saliva viable counts provide a quantitative measure of beta-hemolytic streptococci.
    • Saliva culture is the most effective method for isolating beta-hemolytic streptococci from the upper respiratory tract in children.

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