Author:
JAROS P.,COOKSON A. L.,REYNOLDS A.,PRATTLEY D. J.,CAMPBELL D. M.,HATHAWAY S.,FRENCH N. P.
Abstract
SUMMARYNationwide prevalence and risk factors for faecal carriage ofEscherichia coliO157 and O26 in cattle were assessed in a 2-year cross-sectional study at four large slaughter plants in New Zealand. Recto-anal mucosal swab samples from a total of 695 young (aged 4–7 days) calves and 895 adult cattle were collected post-slaughter and screened with real-time polymerase chain reaction (PCR) for the presence ofE. coliO157 and O26 [Shiga toxin-producingE. coli(STEC) and non-STEC]. Co-infection with either serogroup ofE. coli(O157 or O26) was identified as a risk factor in both calves and adult cattle for being tested real-time PCR-positive forE. coliO157 or O26. As confirmed by culture isolation and molecular analysis, the overall prevalence of STEC (STEC O157 and STEC O26 combined) was significantly higher in calves [6·0% (42/695), 95% confidence interval (CI) 4·4–8·1] than in adult cattle [1·8% (16/895), 95% CI 1·1–3·0] (P< 0·001). This study is the first of its kind in New Zealand to assess the relative importance of cattle as a reservoir of STEC O157 and O26 at a national level. Epidemiological data collected will be used in the development of a risk management strategy for STEC in New Zealand.
Publisher
Cambridge University Press (CUP)
Subject
Infectious Diseases,Epidemiology
Cited by
17 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献