Detection of #colistin #resistance #mcr-1 gene in #Salmonella enterica serovar Rissen isolated from #mussels, #Spain, 2012­ to 2016 (Euro Surveill., abstract)

[Source: Eurosurveillance, full page: (LINK). Abstract, edited.]

Detection of colistin resistance mcr-1 gene in Salmonella enterica serovar Rissen isolated from mussels, Spain, 2012­ to 2016

Antonio Lozano-Leon1,2, Carlos Garcia-Omil1, Jacobo Dalama1, Rafael Rodriguez-Souto1, Jaime Martinez-Urtaza3, Narjol Gonzalez-Escalona4

Affiliations: 1 ASMECRUZ Laboratory. Playa de Beluso s/n 36939, Pontevedra, Spain; 2 CI8 Research Group. Department Chemistry and Food Analysis, University of Vigo, As Lagoas-Marcosende 36310 Vigo, Pontevedra, Spain; 3 Centre for Environment, Fisheries and Aquaculture Science (Cefas), Barrack Road, Weymouth, Dorset, United Kingdom; 4 Center for Food Safety and Applied Nutrition, Food and Drug Administration, College Park, Maryland, United States

Correspondence:  Antonio Lozano-Leon

Citation style for this article: Lozano-Leon Antonio, Garcia-Omil Carlos, Dalama Jacobo, Rodriguez-Souto Rafael, Martinez-Urtaza Jaime, Gonzalez-Escalona Narjol. Detection of colistin resistance mcr-1 gene in Salmonella enterica serovar Rissen isolated from mussels, Spain, 2012­ to 2016. Euro Surveill. 2019;24(16):pii=1900200.

Received: 20 Mar 2019;   Accepted: 16 Apr 2019



Nineteen Salmonella strains were isolated from 5,907 randomly selected mussel samples during a monitoring programme for the presence of Salmonella in shellfish in Galicia, north-west Spain (2012–16). Serovars, sequence type and antimicrobial resistance genes were determined through genome sequencing. Presence of the mcr-1 gene in one strain belonging to serovar Rissen and ST-469 was identified. The mcr-1 gene had not been isolated previously in environmental Salmonella isolated from mussels in Spain.

©  This work is licensed under a Creative Commons Attribution 4.0 International License.

Keywords: Antibiotics; Drugs Resistance; Colistin; MCR1; Salmonella enterica; Spain.


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Giuseppe Michieli

I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum ( in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.