12/31/2022 0 Comments Pet30a vector map pdf![]() ![]() coli that causes diarrhoea not only in humans but also in various animals, such as pigs, cattle and sheep. The concept of One Health should be adopted to intervene in ETEC infections among animals and humans.Įnterotoxigenic Escherichia coli (ETEC) is a diarrhoeagenic E. Although human ETEC had been thought to be distinguished from those of domestic animals based on CFs, zoonotic strains may conceal themselves among human ETEC organisms. This is the first report of domestic livestock having antibodies to K88 O169 of human ETEC. coli with K88 O169 adhesin can infect various hosts, including pigs and cattle. The seroepidemiological study using recombinant antigens (two paralogs FaeG1 and FaeG2 from K88 O169) showed reactivity of porcine (18.0%) and bovine (17.1%) sera to K88 O169 FaeG1 and/or FaeG2 antigens on indirect ELISA tests. ![]() Samples were tested for antibodies against recombinant proteins of possible paralogous adhesins, FaeG1 and FaeG2, from K88 O169 and the FaeG of typical K88 (F4). In the present study, we focused on K88-like CF (hereafter, K88 O169) that may allow the organisms to infect domestic livestock like original K88-harbouring strains that can cause diarrhoea in piglets. The plasmid included a unique set of genes encoding a novel CF resembling K88 (F4) of porcine ETEC, in addition to CS6, a well-known representative CF of human ETEC, and another novel CF similar to CS8 (CFA/III) of human ETEC. Previously, we determined the complete sequence of the unstable virulence plasmid, pEntYN10. Human ETEC serotype O169:H41 (O169) has been a representative of epidemic ETEC worldwide the organism shows massive adherence to HEp-2 cells similar to enteroaggregative E. ![]() Enterotoxigenic Escherichia coli (ETEC) strains that express various fimbrial or nonfimbrial colonisation factors (CFs) and enterotoxins are critical causes of diarrhoeal diseases. ![]()
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