Concentration and prevalence of Escherichia coli O157 in sheep faeces at pasture in Scotland

被引：40

作者：

Ogden, ID ^{[1
]}

MacRae, M

Strachan, NJC

机构：

[1] Univ Aberdeen, Dept Med Microbiol, Appl Food Microbiol Grp, Aberdeen AB25 2ZD, Scotland

[2] Univ Aberdeen, Sch Biol Sci, Aberdeen AB25 2ZD, Scotland

来源：

JOURNAL OF APPLIED MICROBIOLOGY | 2005年 / 98卷 / 03期

关键词：

concentration and prevalence; Escherichia coli O157; immunomagnetic separation; sheep;

D O I：

10.1111/j.1365-2672.2004.02493.x

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Aims: To study the presence, numbers and virulence profiles of Escherichia coli O157 in sheep faeces and validate the microbiological methods used to attain these data. Methods and Results: Flock level prevalence was found to be 40% ( six from 15) and 6(.)5% of faecal samples tested were found to be positive. Two farms gave samples defined as high shedding (>10(4) CFU g(-1)), one of which comprised 91% positive samples with 13/33 at the high shedding level. Conclusions: These data confirmed that sheep are an important reservoir of E. coli O157. Significance and Impact of the Study: Sheep play a significant role in the maintenance and dispersal of E. coli O157 in the farming environment and are an important source of human infection.

引用

页码：646 / 651

页数：6

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