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Cryptococcus neoformans var. gattii in India

A A Padhye1, A Chakrabarti, J Chander

  • 1Division of Bacterial and Mycotic Diseases, Centers for Disease Control, Atlanta, Georgia 30333.

Journal of Medical and Veterinary Mycology : Bi-Monthly Publication of the International Society for Human and Animal Mycology
|January 1, 1993
PubMed
Summary

This study identified Cryptococcus neoformans in Indian clinical samples, finding common varieties and the first documented instances of Cryptococcus neoformans var. gattii and serotype AD in India.

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Area of Science:

  • Medical Mycology
  • Infectious Diseases
  • Clinical Microbiology

Background:

  • Cryptococcus neoformans is an opportunistic fungal pathogen.
  • Different varieties and serotypes of C. neoformans exist, with varying geographic distributions.
  • Understanding the epidemiology of C. neoformans is crucial for public health.

Purpose of the Study:

  • To characterize the varieties and serotypes of Cryptococcus neoformans clinical isolates from India.
  • To document the presence of specific C. neoformans varieties and serotypes in India for the first time.

Main Methods:

  • Analysis of 18 clinical isolates of Cryptococcus neoformans.
  • Serotyping of the isolates to determine variety and serotype.

Main Results:

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  • 15 isolates were identified as C. neoformans var. neoformans (13 serotype A, 2 serotype AD).
  • 3 isolates were identified as C. neoformans var. gattii (serotype B).
  • This marks the first report of C. neoformans var. gattii and serotype AD in India.

Conclusions:

  • The study identified the presence of both C. neoformans var. neoformans and C. neoformans var. gattii in India.
  • The findings highlight the emergence of C. neoformans var. gattii and serotype AD in the Indian subcontinent.
  • Further epidemiological surveillance is warranted to understand the prevalence and clinical significance of these fungal pathogens in India.