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  • Title: Pilot study on CHCF1 genotype in a pig challenge model for enterotoxigenic Escherichia coli F4ab/ac associated post-weaning diarrhea.
    Author: Rydal MP, Gambino M, Jørgensen CB, Poulsen LL, Brøndsted L, Nielsen JP.
    Journal: BMC Vet Res; 2022 Nov 01; 18(1):382. PubMed ID: 36320033.
    Abstract:
    Host genotype is important for enterotoxigenic E. coli (ETEC) susceptibility. We conducted two trials to evaluate the effect of CHCF1 genotype on incidence of ETEC diarrhea. In trial 1 (n = 15 pigs), pigs were inoculated with 108 CFU or 1010 CFU doses of an ETEC F4ac strain. In trial 2 (n = 33 pigs), pigs were inoculated with ETEC F4ab or F4ac. Across trials, all inoculated pigs that developed ETEC diarrhea were CHCF1 heterozygous susceptible (6/6). No inoculated CHCF1 homozygous resistant pigs developed ETEC diarrhea (0/26). Susceptibility towards ETEC F4ac/ab infection might correspond with CHCF1 genotype.
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