| Autor: |
Umpiérrez, Ana, Ernst, Déborah, Fernández, Magalí, Oliver, Martín, Casaux, María L., Caffarena, Rubén D., Schild, Carlos, Giannitti, Federico, Fraga, Martín, Zunino, Pablo |
| Zdroj: |
Revista Argentina de Microbiologia; January-March 2021, Vol. 53 Issue: 1 p34-38, 5p |
| Abstrakt: |
Escherichia coliETEC, EPEC, NTEC and STEC/EHEC pathotypes are often isolated from bovine feces. The objective of this study was to detect 21 E. colivirulence genes in feces from 252 dairy calves in Uruguay (149 with neonatal diarrhea – NCD – and 103 asymptomatic). Genes iucD, f17A, afa8E, papC, clpGand f17G(II)were the most prevalent (81.3%; 48.4%; 37.3%; 35.7%; 34.1%; 31.3%, respectively). Genes eae, stx1and stx2were poorly represented; 13/252 animals harbored one or a combination of these genes. The prevalence of the cnfgene was 4.4%, while that of cdt-IVand cdt-IIIgenes was 24.2% and 12.7% respectively. This study reports updated data about the virulence profiles of E. coliin dairy calves in Uruguay. A large number of adhesins and toxin genes were detected. Our results demonstrate that E. colifrom bovine feces has diarrheagenic and extraintestinal profiles although other NCD risks factors may contribute to the disease outcome. |
| Databáze: |
Supplemental Index |
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