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Background  Little is known on the occurrence and identity of  Cryptosporidium  species in sheep and goats in Algeria. This study aimed at investigating the occurrence of  Cryptosporidium  species in lambs and goat kids younger than 4 weeks.    Methods  A total of 154 fecal samples (62 from lambs and 92 from kid goats) were collected from 13 sheep flocks in Médea, Algeria and 18 goat flocks across Algiers and Boumerdes. They were screened for  Cryptosporidium  spp. by nested-PCR analysis of a fragment of the small subunit ( SSU ) rRNA gene, followed by restriction fragment length polymorphism and sequence analyses to determine the  Cryptosporidium  species present.  Cryptosporidium parvum  and  C. ubiquitum  were further subtyped by sequence analysis of the 60 kDa glycoprotein gene.    Results   Cryptosporidium  spp. were detected in 17 fecal samples (11.0%): 9 from lambs (14.5%) and 8 from goat kids (8.7%). The species identified included  C. parvum  in 3 lambs,  C. xiaoi  in 6 lambs and 6 goat kids, and  C. ubiquitum  in 2 goat kids.  Cryptosporidium  infections were detected mostly in animals during the first two weeks of life (7/8 for goat kids and 7/9 for lambs) and in association with diarrhea occurrence (7/17 or 41.2% goat kids and 7/10 or 70.0% lambs with diarrhea were positive for  Cryptosporidium  spp.). Subtyping of  C. parvum  and  C. ubiquitum  isolates identified the zoonotic IIaA13G2R1 and XIIa subtype families, respectively. Minor differences in the  SSU  rRNA gene sequences were observed between  C. xiaoi  from sheep and goats.    Conclusions  Results of this study indicate that three  Cryptosporidium  species occur in lambs and goat kids in Algeria, including zoonotic  C. parvum  and  C. ubiquitum . They are associated with the occurrence of neonatal diarrhea.

Zoonotic Cryptosporidium species and subtypes in lambs and goat kids in Algeria