Prevalence and characterization of Shiga toxin-producing Escherichia coli O157 and O26 in beef farms

Elazığ’da Mezbahalarda Kesilen Sığırlardan ve Piyasada Satılan Kıymalardan Shiga Toksin Üreten Escherichia coli O157’nin İzolasyonu, Virulens Genleri ve Antibiyotiklere Duyarlılıkları

“…In this presented study, STEC O157 was detected in 3.3% of 540 cattle rectal swab samples. In comparison with the studies conducted in Turkey and in other countries, this rate is higher than the findings of some researchers 12,27,29,31 and lower than the findings of others 11,13,28,30 . This may result from the differences in seasons, ages of animals, method of breeding and geographic differences.…”

“…In the studies conducted in several countries for determining STEC O157 prevalence in cattle faecal samples, 28 reported detection of the bacterium in 7.2% of the cattle slaughtered in slaughter houses in Bangladesh, Manna et al 29 in 2% of cattle slaughtered in slaughter houses in India, Sasaki et al 30 in 8.9% of beef cattle in Japan, and Zhou et al 31 in 1.7% of cattle faeces in China. In studies conducted in several regions of Turkey, it is reported that E. coli O157 was detected in cattle faeces with rates varying between 0.6% and 25% [10][11][12][13] .…”

Prevalence and Characterization of Foodborne Pathogens in Dairy Cattle in the Eastern Part of Japan

“…The prevalence of STEC O157 in lactating cows (1.2%) was lower than that in beef cattle (8.9%, 218/2436) reported in our previous study [19]. We propose that this difference in the prevalence of STEC O157 between dairy and beef cattle reflects the entirely different feeding and hygiene management on beef and dairy farms rather than the breed difference, because it has been reported that there was no association between the prevalence of STEC O157 and the cattle breed [Japanese Black (JB), HF and the first-generation hybrid of JB and HF] [19]. The identification of risk factors for prevalence of STEC O157 on dairy farms may be helpful for the identification of the risk factors on beef farms.…”

“…Isolation of E. coli O157 and E. coli O26 was carried out as previously described [19]. E. coli O157 isolates were tested by tube agglutination with H antisera (Denka Seiken Co., Ltd., Tokyo, Japan).…”

Comparison of the Prevalence of Shiga Toxin-Producing <i>Escherichia coli</i> Strains O157 and O26 between Beef and Dairy Cattle in Japan

“…The prevalence and characteristics of STEC O157 and STEC O26 in beef and dairy cattle are essential background information for the application of food safety measures along the food chain. We have reported that the prevalence rates of STEC 157 and STEC O26 in 2,436 beef cattle (406 beef farms) were investigated from November 2007 through March 2008, and STEC O157 and STEC O26 isolates were obtained from 218 (8.9%) cattle on 110 (27.1%) farms and from 10 (0.4%) cattle on 7 (1.7%) farms, respectively [12]. In addition, we recently found that although no STEC O26 was isolated from 250 dairy cows, STEC O157 was isolated from 3 dairy cows (1.2%, 3/250) on 1 dairy farm (4.0%, 1/25) from December 2010 through February 2011 [14].…”