Prevalence of Cryptosporidium in small ruminants from Veracruz, Mexico

BMC Veterinary Research

Research Article

José O. Merino-Charrez¹  Jesús Hernández-Tinoco²  Cosme Alvarado-Esquivel³  Mariel Aguilar-Domínguez⁴  Anabel Cruz-Romero⁴  Nelly Ibarra-Priego⁴  Dora Romero-Salas⁴  Adalberto A. Pérez de León⁵ 

[1] Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Tamaulipas, Cd. Victoria, Tamaulipas, Mexico;Institute for Scientific Research “Dr. Roberto Rivera Damm”, Juárez University of Durango State, Durango, Mexico;Laboratorio de Investigación Biomédica. Facultad de Medicina y Nutrición, Juárez University of Durango State, Avenida Universidad S/N, 34000, Durango, Mexico;Laboratorio de Parasitología. UD PZTM. Facultad de Medicina Veterinaria y Zootecnia, Universidad Veracruzana, Veracruz, Mexico;USDA-ARS Knipling-Bushland U.S. Livestock Insects Research Laboratory, and Veterinary Pest Genomics Center, Kerrville, TX, USA;

关键词: Cryptosporidium;    Infection;    Zonoosis;    Prevalence;    Small ruminants;    Sheep;    Goats;    Veracruz State;    Mexico;   

DOI  :  10.1186/s12917-016-0638-3

 received in 2015-07-10, accepted in 2016-01-14,  发布年份 2016

来源: Springer

【 摘 要 】

BackgroundCryptosporidiosis is a zoonotic disease caused by the protozoan parasite Cryptosporidium spp. that can affect domestic animal and human populations. In newborn ruminants, cryptosporidiosis is characterized by outbreaks of diarrhea, which can result in high morbidity and economic impact. The aim of the present study was to determine the prevalence of Cryptosporidium spp. in small ruminants from the Perote municipality in Veracruz State, Mexico. One hundred and sixty small ruminants (80 sheep and 80 goats) from eight farms located in four towns of the Perote municipality were examined following a cross-sectional study design. Stool samples were analyzed by a modification of the Faust centrifugation method, and the presence of Cryptosporidium spp. oocysts was examined using a modification of the Ziehl-Neelsen staining procedure. Bivariate and multivariate analyses were used to assess the association of Cryptosporidium infection and the general characteristics of the animals studied.ResultsOverall, 112 (70 %, 95 % CI: 62.3–76.9) of the 160 small ruminants sampled were infected with Cryptosporidium spp. The prevalence of Cryptosporidium spp. infection in goats was 72.5 % (95 % CI: 61.4–81.9) and in sheep 67.5 % (95 % CI: 56.1–77.6). Small ruminants aged 1 month old had the highest (88.2 %; 95 % CI: 63.6–98.5) prevalence of infection. Prevalence varied from 60 % to 85 % among herds. Animal species, age, sex, breed, farm, town or cohabitation with cattle did not influence the prevalence of Cryptosporidium infection.ConclusionsA high prevalence of infection with Cryptosporidium spp. was observed in small ruminants from the Perote municipality in Veracruz, Mexico. Infection was widely distributed among sheep and goats regardless of their age, breed or farm location. Further research is required to identify risk factors for, and to assess the veterinary public health significance of Cryptosporidium infection among sheep and goats in the Mexican state of Veracruz.

【 授权许可】

CC BY   
© Romero-Salas et al. 2016