Cryptococcus neoformans in pigeon feces in San Francisco

California Medicine
|March 1, 1966
PubMed

Insights

Cryptococcus neoformans, a significant fungal pathogen, was detected in pigeon feces in San Francisco. This finding suggests the fungus is widespread in urban environments.

Area of Science:

  • Mycology
  • Environmental Microbiology
  • Public Health

Background:

  • Cryptococcus neoformans is an opportunistic fungal pathogen.
  • Pigeons are known reservoirs for various microorganisms.
  • Urban environments can harbor significant microbial populations.

Purpose of the Study:

  • To investigate the presence of Cryptococcus neoformans in pigeon feces in an urban setting.
  • To assess the potential prevalence of this pathogen in a specific metropolitan area.

Main Methods:

  • Collection of pigeon fecal specimens from downtown San Francisco.
  • Microbiological culture and identification of Cryptococcus neoformans.

Main Results:

  • Cryptococcus neoformans was isolated from one out of ten fecal specimens.
  • The isolation rate, though low in this sample, indicates potential widespread presence.

Conclusions:

  • The isolation of Cryptococcus neoformans from a small sample of pigeon feces suggests it is ubiquitous in urban environments.
  • Pigeon feces may serve as a relevant environmental source for Cryptococcus neoformans transmission.

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