Authors: Fernanda Morcatti Coura Moisés Dias Freitas Juliane Ribeiro Raquel Arruda de Leme Cecília de Souza Amauri Alcindo Alfieri Elias Jorge Facury Filho Antônio Último de Carvalho Marcos Xavier Silva Andrey Pereira Lage Marcos Bryan Heinemann
Publish Date: 2014/10/14
Volume: 47, Issue: 1, Pages: 3-11
Abstract
This prospective longitudinal study investigated the epidemiology of enteric disease associated with infections in calves aging up to 70 days A total of 850 fecal samples were collected from 67 calves Seventeen isolates of Salmonella spp were recovered from feces of 11 calves 164 and statistical analysis revealed no association between the presence of Salmonella spp and clinical signs of diarrhea or age Virulence factors of Escherichia coli were identified in 103 strains eae 7 K99/STa 7 Stx1 7 Stx1/eae 36 Stx1/Stx2/eae 2 Stx2 43 and Stx2/eae 1 There was statistical association between diarrheic animals carrying E coli Stx1/eae + in their feces at 2 and 4 weeks of age P = 0003 and E coli Stx2 + at 5 weeks of age P = 003 Rotavirus was detected in 49 576 fecal samples collected from 33 calves 492 The presence of rotavirus was correlated with diarrheic feces P 00001 rather than feces with normal consistency There was a significant relationship between age group and diarrhea P = 0001 Bovine coronavirus BCoV was detected in 93 fecal samples collected from 46 calves 686 There was an association P 00001 between diarrheic animals positive for BCoV and age groups The results demonstrate the importance of the pathogens studied in the etiology of diarrhea in calvesThis work was supported by the Conselho Nacional de Desenvolvimento Técnico e CientíficoCNPq PróReitoria de Pesquisa da UFMGPRPq and Fundação de Amparo à Pesquisa do Estado de Minas GeraisFAPEMIG AAA APL and MBH are indebted to CNPq for the fellowships received FMC is a fellowship recipient of the Conselho Nacional de Desenvolvimento Técnico e CientíficoCNPq Brazil
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