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Related Experiment Videos

Identification of gallbladder typhoid carriers by a string device

R H Gilman, S Islam, H Rabbani

    Lancet (London, England)
    |April 14, 1979
    PubMed
    Summary

    A novel gelatin capsule with a nylon string effectively collects duodenal specimens for identifying Salmonella typhosa (typhi) carriers. This method is as efficient as traditional tubes but more comfortable and simpler for diagnostic purposes.

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    Area of Science:

    • Microbiology
    • Gastroenterology
    • Infectious Diseases

    Background:

    • Salmonella typhosa (typhi) is a significant human pathogen.
    • Identifying asymptomatic carriers is crucial for controlling typhoid fever transmission.
    • Current diagnostic methods for carrier detection can be invasive or less sensitive.

    Purpose of the Study:

    • To evaluate the efficiency of a new gelatin capsule-nylon string device for collecting duodenal specimens.
    • To compare the diagnostic yield of this device with conventional duodenal intubation and stool cultures for Salmonella typhosa detection.

    Main Methods:

    • The study involved carriers of Salmonella typhosa (typhi).
    • Duodenal specimens were collected using a gelatin capsule containing a nylon string.

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  • Specimens were also collected using a conventional duodenal tube and stool samples.
  • Cultures from all specimen types were compared for Salmonella typhosa detection.

    • Main Results:

    • Duodenal specimens collected via the string capsule were more frequently positive for Salmonella typhosa than stool cultures.
    • The string capsule demonstrated comparable efficiency to the conventional duodenal tube method.
    • The string capsule method was reported as simpler and more comfortable for patients.

    Conclusions:

    • The gelatin capsule-nylon string device is an efficient and practical tool for duodenal specimen collection.
    • This method shows promise for improved identification of asymptomatic Salmonella typhosa (typhi) carriers.
    • The device offers a simpler, more comfortable alternative to traditional duodenal intubation for microbiological sampling.