Molecular Screening and Characterization of Shiga Toxin-producing Escherichia coli By Multiplex PCR Assays for stx1, stx2, eaeA, H7 in Raw Milk

被引:1
作者
Koev, Koycho [1 ]
Zhelev, Georgi [1 ]
Marutsov, Plamen [1 ]
Gospodinova, Krasimira [1 ]
Petrov, Vladimir [1 ]
Stoyanchev, Todor [2 ]
机构
[1] Trakia Univ, Dept Vet Microbiol Infect & Parsit Dis, Stara Zagora, Bulgaria
[2] Trakia Univ, Dept Food Hyg Technol & Control, Vet Legislat & Management, Stara Zagora, Bulgaria
关键词
Escherichia coli O157:H7; Dairy farms; Bulk milk; Enrichment; PCR; DAIRY; IDENTIFICATION; O157/H7; O157-H7; GROWTH; BOVINE; WATER;
D O I
10.9775/kvfd.2018.20373
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
The presence of Shiga-toxin producing Escherichia coli (STEC) was evaluated in bulk milk from dairy cattle farms in Bulgaria. From 20 regional farms only 4 were selected as a source for milk sampling on the basis of their annual STEC shedding in feces. All the samples were PCR analyzed after selective enrichment. Positive samples were detected in subsequent molecular testing as: two of samples (9.08%) were positive for stx(1), one sample (4.54%) for stx(2), 10 samples (45.54%) for eae and 12 (54.54%) for H7 coding genes.
引用
收藏
页码:271 / 275
页数:5
相关论文
共 16 条
[1]  
Bos J, 2008, MULTY COUNTY OUTBREA
[2]  
Brenjchi M, 2011, IRAN J VET RES, V12, P145
[3]   Detection, occurrence, and characterization of Escherichia coli O157:H7 from raw ewe's milk in Spain [J].
Caro, I ;
Fernández-Barata, VM ;
Alonso-Llamazares, A ;
García-Armesto, MR .
JOURNAL OF FOOD PROTECTION, 2006, 69 (04) :920-924
[4]  
Fernández D, 2012, REV ARGENT MICROBIOL, V44, P312
[5]  
Food standard agency, 2011, E COL O157 CONTR CRO
[6]   Use of the flagellar H7 gene as a target in multiplex PCR assays and improved specificity in identification of enterohemorrhagic Escherichia coli strains [J].
Gannon, VPJ ;
DSouza, S ;
Graham, T ;
King, RK ;
Rahn, K ;
Read, S .
JOURNAL OF CLINICAL MICROBIOLOGY, 1997, 35 (03) :656-662
[7]   Enterohemorrhagic Escherichia coli O157 in milk and dairy products from Libya: Isolation and molecular identification by partial sequencing of 16S rDNA [J].
Garbaj, Aboubaker M. ;
Awad, Enas M. ;
Azwai, Salah M. ;
Abolghait, Said K. ;
Naas, Hesham T. ;
Moawad, Ashraf A. ;
Gammoudi, Fatim T. ;
Barbieri, Ilaria ;
Eldaghayes, Ibrahim M. .
VETERINARY WORLD, 2016, 9 (11) :1184-1189
[8]  
Hlavsa MC, 2015, MMWR-MORBID MORTAL W, V64, P668
[9]   SEL, a selective enrichment broth for simultaneous growth of Salmonella enterica, Escherichia coli O157: H7, and Listeria monocytogenes [J].
Kim, Hyochin ;
Bhunia, Arun K. .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2008, 74 (15) :4853-4866
[10]  
Koev K., 2018, Bulgarian Journal of Veterinary Medicine, V21, P445, DOI 10.15547/bjvm.1077