Identity and public health potential of Cryptosporidium spp. in water buffalo calves in Egypt

Little is known about the diversity and public health significance of Cryptosporidium species in water buffaloes. In this study, we examined the distribution of Cryptosporidium spp. in water buffalo calves in Egypt. Rectal fecal specimens from 179 calves and 359 adults were screened microscopically...

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Bibliographic Details
Published in:Veterinary parasitology 2013-01, Vol.191 (1-2), p.123-127
Main Authors: Amer, Said, Zidan, Shereif, Feng, Yaoyu, Adamu, Haileeyesus, Li, Na, Xiao, Lihua
Format: Article
Language:English
Subjects:
Animals
Buffalo
Buffaloes - parasitology
Calves
Cryptosporidiosis - epidemiology
Cryptosporidiosis - veterinary
Cryptosporidium
Cryptosporidium - classification
Cryptosporidium - genetics
Cryptosporidium parvum
DNA, Ribosomal - genetics
Egypt
Egypt - epidemiology
Feces - parasitology
Genotype
Molecular Sequence Data
Phylogeny
Prevalence
Public Health
Subtype
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Summary:Little is known about the diversity and public health significance of Cryptosporidium species in water buffaloes. In this study, we examined the distribution of Cryptosporidium spp. in water buffalo calves in Egypt. Rectal fecal specimens from 179 calves and 359 adults were screened microscopically for Cryptosporidium oocysts using modified Ziehl–Neelsen stain. Cryptosporidium spp. in 17 microscopy-positive specimens from calves were genotyped by DNA sequence analysis of the small-subunit rRNA gene, and Cryptosporidium parvum was subtyped by sequence analysis of the 60kDa glycoprotein gene. Cryptosporidium ryanae was found in 10 specimens and C. parvum in 7 specimens, with the former belonging to the newly identified C. ryanae buffalo variant and the latter belonging to the subtypes IIdA20G1 (in 5 specimens) and IIaA15G1R1 (in 2 specimens). The prevailing occurrence of C. ryanae and the subtype family IId of C. parvum and the absence of C. bovis and C. andersoni represent some features of Cryptosporidium transmission in water buffaloes in Egypt.
ISSN:0304-4017
1873-2550
DOI:10.1016/j.vetpar.2012.08.015