Prevalence of Listeria spp. and characterization of Listeria monocytogenes isolated from food products in Tetouan, Morocco

被引：36
|
作者：
Amajoud, Nadia [1 ]
Leclercq, Alexandre [2 ,3 ]
Soriano, Jose M. [4 ,5 ]
Bracq-Dieye, Helene [2 ,3 ]
El Maadoudi, Mohammed [6 ]
Senhaji, Nadia Skalli [1 ]
Kounnoun, Ayoub [1 ]
Moura, Alexandra [2 ,3 ]
Lecuit, Marc [2 ,3 ,7 ]
Abrini, Jamal [1 ]
机构：
[1] Abd Al Malek Essaadi Univ, Fac Sci Tetouan, Dept Biol, Lab Biol & Hlth, Tetouan, Morocco
[2] WHO, Biol Infect Unit, INSERM U1117, Inst Pasteur,Collaborating Ctr, Paris, France
[3] Natl Reference Ctr Listeria, Paris, France
[4] Univ Valencia, Gastrolab, Res Grp Food Sci Based Evidence & Expt, Inst Mat Sci, Sci Pk, Paterna, Spain
[5] Univ Valencia, Joint Res Unit Endocrinol Nutr & Clin Dietet, Med Res Inst, Hosp La Fe, Valencia, Spain
[6] Reg Anal Lab & Res ONSSA, Tangier, Morocco
[7] Paris Descartes Univ, Necker Enfants Malad Univ Hosp, Div Infect Dis & Trop Med, Paris, France
来源：
FOOD CONTROL | 2018年 / 84卷
关键词：
Listeria; PCR-Serogrouping; PFGE; cgMLST; Morocco;
D O I：
10.1016/j.foodcont.2017.08.023
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
A total of 1096 food samples were purchased in Tetouan, North-Western of Morocco, to examine the presence of Listeria spp. Eighty (7.3%) of the tested samples were found positive for the presence of Listeria spp., while L. monocytogenes was detected in 16 (1.5%) samples. L. monocytogenes isolates belonged to clonal complexes CC2 (PCR serogroup IVb) and CC199 (PCR serogroup Ila) and to 8 different combined AscI/Apal pulsed-field gel electrophoresis profiles. Core genome multilocus sequence typing (cgMLST) allowed to distinguish 12 different cgMLST types and revealed the presence of 3 clusters of closely-related isolates from different samples, suggesting the existence of common sources of contamination. Isolates showed no resistance to the reference antibiotics used for the treatment of listeriosis. This study underlines the circulation of L. monocytogenes strains of clonal complex CC2 in Morocco and highlights the importance of microbiological surveillance in order to minimize consumers' exposure to this foodborne pathogen. (C) 2017 Elsevier Ltd. All rights reserved.
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收藏
页码：436 / 441
页数：6
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