title: Epidemiology of Escherichia coli serogroups O26, O103, O111 and O145 in very young ('bobby') calves in the North Island, New Zealand.
abstract: The prevalence and spatial distribution of Escherichia coli serogroups O26, O103, O111 and O145 in calves 70% similarity) using pulsed field gel electrophoresis. Mapping of the farms showed the presence of farms positive for O26, O103 and O145 in three important dairy producing regions of the North Island. Calves positive for O103 were more likely to be positive for O26 and vice versa (P = 0·04). Similarly, calves positive for O145 were more likely to be positive for O103 and vice versa (P = 0·03). This study demonstrates that non-O157 E. coli serogroups of public health and economic importance containing clinically relevant virulence factors are present in calves in the North Island of New Zealand.
authors.affiliation: mEpiLab,Hopkirk Research Institute, Massey University,Palmerston North, 4442,New Zealand.
authors.forename: H
authors.initials: H
authors.lastname: Irshad
authors.affiliation: mEpiLab,Hopkirk Research Institute, Massey University,Palmerston North, 4442,New Zealand.
authors.forename: A L
authors.initials: AL
authors.lastname: Cookson
authors.affiliation: mEpiLab,Hopkirk Research Institute, Massey University,Palmerston North, 4442,New Zealand.
authors.forename: D J
authors.initials: DJ
authors.lastname: Prattley
authors.affiliation: mEpiLab,Hopkirk Research Institute, Massey University,Palmerston North, 4442,New Zealand.
authors.forename: J
authors.initials: J
authors.lastname: Marshall
authors.affiliation: mEpiLab,Hopkirk Research Institute, Massey University,Palmerston North, 4442,New Zealand.
authors.forename: N P
authors.initials: NP
authors.lastname: French
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology* / Q000382:microbiology*; D016521:Electrophoresis, Gel, Pulsed-Field / Q000662:veterinary; D004926:Escherichia coli / Q000235:genetics / Q000472:pathogenicity / Q000502:physiology*; D004927:Escherichia coli Infections / Q000453:epidemiology / Q000382:microbiology / Q000662:veterinary*; D009520:New Zealand / Q000453:epidemiology; D065288:Serogroup; D037521:Virulence Factors
chemical_list: D037521:Virulence Factors
keywords: Calves; New Zealand; non-O157 STEC