title: Prevalence of Cryptosporidium spp. in asymptomatic sheep in family flocks from Mexico State.
abstract: To determine Cryptosporidium spp. prevalence in faeces from asymptomatic sheep, 37 family flocks in Mexico State were sampled. Data were collected by the interview method and Ziehl-Neelsen stain of faecal samples for Cryptosporidium identification. The independent group proportion hypothesis test was used for differences in prevalences between sheep farms. A 34.3% general prevalence was found, and prevalence in herds with >100 animals was significantly higher (40.6%). Correlation was found between flock size and Cryptosporidium spp. presence (odds ratio, OR, 2.57; confidence interval, IC(95%), 1.84-3.60).
authors.affiliation: Centro de Investigación y Estudios Avanzados en Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Mexico. muaf@uaemex.mx
authors.forename: M U
authors.initials: MU
authors.lastname: Alonso-Fresán
authors.forename: A
authors.initials: A
authors.lastname: García-Alvarez
authors.forename: F
authors.initials: F
authors.lastname: Salazar-García
authors.forename: J C
authors.initials: JC
authors.lastname: Vázquez-Chagoyán
authors.forename: N
authors.initials: N
authors.lastname: Pescador-Salas
authors.forename: J
authors.initials: J
authors.lastname: Saltijeral-Oaxaca
mesh_terms: D000818:Animals; D003457:Cryptosporidiosis / Q000453:epidemiology / Q000662:veterinary*; D003458:Cryptosporidium / Q000302:isolation & purification*; D005243:Feces / Q000469:parasitology; D005260:Female; D008297:Male; D008800:Mexico / Q000453:epidemiology; D015995:Prevalence; D012621:Seasons; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*