Occurrence of Cryptosporidium (Apicomplexa, Cryptosporidiidae) in Crotalus durissus terrificus (Serpentes, Viperidae) in Brazil
Mem. Inst. Oswaldo Cruz
; 97(6): 779-781, Sept. 2002. tab
Article
in English
| LILACS
| ID: lil-320163
Responsible library:
BR1.1
RESUMO
The objective of the present study was to investigate the prevalence of Cryptosporidium (Apicomplexa, Cryptosporidiidae) in the snake Crotalus durissus terrificus (Serpentes, Viperidae). Fifty animals were evaluated for the presence of oocysts of Cryptosporidium sp. at the time of arrival and 30 and 60 days later. Intestinal washings with saline solution (1 percent body weight), fecal samples, and organ scrapings were collected during the study. Oocysts were concentrated by an ether-phosphate-buffered saline sedimentation technique and then separated by a density gradient centrifugation technique. Smears were made with the sediment and submitted to modified acid-fast and auramine-rhodamine staining. Cryptosporidium-positive smears were used as controls for the experimental findings. The overall prevalence of Cryptosporidium sp. oocysts was 14 percent. Among the positive snakes, oocysts were detected only in the intestinal washing in two specimens, only in the feces in four specimens, and in both materials at least once in one specimen. The positive snakes were predominantly from Santa Maria da Serra city State of Säo Paulo (57.1 percent). We also observed that all of the examinations that presented positive results were obtained at least 27 days after the capture of the animals
Full text:
Available
Collection:
International databases
Health context:
SDG3 - Health and Well-Being
/
Neglected Diseases
Health problem:
Target 3.3: End transmission of communicable diseases
/
Neglected Diseases
/
Zoonoses
Database:
LILACS
Main subject:
Crotalus
/
Cryptosporidiosis
/
Cryptosporidium
Type of study:
Prevalence study
/
Risk factors
Limits:
Animals
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2002
Document type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Unesp/BR