Characterization of mammary pathogenic Escherichia coli reveals the diversity of Escherichia coli isolates associated with bovine clinical mastitis in Brazil
Henrique Orsi, F. F. Guimarães, Domingos da Silva Leite, Simony Trevizan Guerra, Sâmea Fernandes Joaquim, J.C.F. Pantoja, Rodrigo T. Hernandes, Simone Baldini Lucheis, Márcio Garcia Ribeiro, Hélio Langoni, Vera Lúcia Mores Rall
Abstract
gene, and were classified as ST10 and ST993 using multilocus sequence typing. A total of 148 (91.2%) isolates were weak biofilm producers or formed no biofilm. Because raw milk is still frequently consumed in Brazil, the occurrence of virulence factor-encoding genes from extraintestinal or diarrheagenic E. coli added to the presence of extended-spectrum β-lactamase-producing isolates can turn this veterinary medicine problem into a public health concern.
Topics & Concepts
Bacterial adhesinBiologyEscherichia coliMicrobiologyVirulenceMastitisPulsed-field gel electrophoresisPathogenic Escherichia coliGeneFimbriaGeneticsGenotypeMilk Quality and Mastitis in Dairy CowsEscherichia coli research studiesEnterobacteriaceae and Cronobacter Research