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Cryptococcus neoformans in bird excreta in the city zoo of Cali, Colombia

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Abstract

The presence of Cryptococcus neoformans was studied in bird excreta and in the air circulating in and around bird cages in the City Zoo of Cali, Colombia, between August 1994 and April 1995, using a sunflower seed agar culture medium for fungus isolation. A total of 380 samples was studied, 110 from droppings and 270 from Petri dishes placed inside(148) and outside (122) the cages. C. neoformansvar neoformans was found in only two cases, one from bird excreta (0.9%) and the other from air inside a cage (0.7%). The former positive sample was collected from the cracks of a dead tree where two crested caracaras (Polyborusplancus) roosted; the feces were dry, accumulated,and with a pH of 6. The other positive sample was found inside the cage of these birds; however, samples taken in a dispersion study at 0.5, 1, 5 and 10 m around this cage were all negative. It appears that this low isolation rate is due to adequate cleaning and disinfection procedures used in the city zoo of Cali.

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Authors and Affiliations

  1. Universidad del Valle, Cali, Colombia

    Luz Dary Caicedo & María Inés Alvarez

  2. Universidad Santiago de Cali, Cali, Colombia

    Luz Dary Caicedo, Maritza Delgado & Alaín Cárdenas

Authors
  1. Luz Dary Caicedo
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  2. María Inés Alvarez
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  3. Maritza Delgado
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  4. Alaín Cárdenas
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Caicedo, L.D., Alvarez, M.I., Delgado, M. et al. Cryptococcus neoformans in bird excreta in the city zoo of Cali, Colombia. Mycopathologia 147, 121–124 (1999). https://doi.org/10.1023/A:1007146700339

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