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To date, no information is available on the prevalence and genetic identity of  Cryptosporidium  spp. in cattle in Algeria. In this study, 17 dairy farms in the province of Batna, located in the northeast of the country, were visited to collect 132 fecal samples from young calves (< 8 weeks old). Samples were examined microscopically using the modified Ziehl-Neelsen acid-fast staining method, and at least one sample per farm was submitted for molecular analysis. Amplification of a fragment of the small subunit ribosomal RNA gene was positive for 24 of the 61 samples (40%), and sequence analysis identified three species, namely  Cryptosporidium bovis  ( n  = 14),  C. ryanae  ( n  = 6), and  C. parvum  ( n  = 4). The  C. parvum  IIaA13G2R1 subtype, an uncommon zoonotic subtype, was identified in two isolates from a single farm by sequencing a fragment of the GP60 gene. This is the first report about genotyping and subtyping of  Cryptosporidium  in calves in Algeria.

First molecular investigation ofCryptosporidiumspp. in young calves in Algeria