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


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