First identification of Cryptosporidium parvum subtype IIaA20G1R1 in water buffalos (Bubalus bubalis)
2018
Martins, Thais Agostinho | Seixas, Mércia | Brito, Danilo Rodrigues Barros | Martins, Felippe Danyel Cardoso | Cardim, Sérgio Tosi | Melo, Priscilla | da Paixão Guterres, Sonália Ferreira | Patrício, Edjanio Gaspar | Garcia, João Luis
Cryptosporidium can infect a wide variety of vertebrate animals, including mammals, birds, amphibians, reptiles, and fish. There are few molecular characterizations of Cryptosporidium isolated from water buffalo. Thus, the present study investigated the occurrence and molecular characterization of Cryptosporidium spp. in water buffalos by nested-PCR. Non-diarrheic feces were obtained from 122 water buffalo calves. All samples were tested by nested-PCR based on the 18S rRNA gene, after which positive samples were analyzed by RFLP and genetic sequencing. Sixteen fecal (13.1%) samples were positive, and RFLP showed that fifteen presented patterns consistent with C. ryanae and one with C. parvum. Sequencing of the gp60 gene from the C. parvum positive sample indicated the subtype IIaA20G1R1. This is the first identification of the IIaA20G1R1 subtype in water buffalos.
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