Unexpected finding of feline-specific Giardia duodenalis assemblage F and Cryptosporidium felis in asymptomatic adult cattle in Northern Spain

Veterinary Parasitology
Guillermo A CardonaDavid Carmena

Abstract

Giardia duodenalis and Cryptosporidium spp. are common enteric protozoan parasites in production animals, including cattle. Typically, both the clinical outcome of these infections and the distribution of G. duodenalis assemblages and Cryptosporidium species are age-dependent, with the occurrence of diarrhoeal disease being mainly associated with young animals and sub-clinical, low intensity infections being predominantly found in adult animals. To investigate the prevalence and genetic diversity of G. duodenalis and Cryptosporidium spp. in asymptomatic adult cattle, a total of 362 faecal samples were collected in four farms in the province of Álava, Northern Spain, between November 2011 and December 2012. The presence of G. duodenalis was estimated by real-time PCR, and the assemblages were determined by multilocus sequence-based genotyping of the glutamate dehydrogenase and β-giardin genes of the parasite. Detection and identification of Cryptosporidium species was carried out by sequencing of a partial fragment of the small-subunit ribosomal RNA gene. Overall, G. duodenalis and Cryptosporidium spp. were detected in 68 (18.8%) and 45 (12.4%), respectively, of the 362 animals tested. Strikingly, four isolates representing two ...Continue Reading

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Citations

Nov 1, 2015·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Aida de LucioDavid Carmena
Jun 9, 2016·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Teklu WegayehuGetachew Tilahun
Aug 12, 2016·The Journal of Infectious Diseases·Maria FantinattiAlda M Da-Cruz
Oct 9, 2021·Parasitology Research·Weilong CaiYaoyu Feng

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