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. 2021 Jan 14;11:599882. doi: 10.3389/fmicb.2020.599882

TABLE 1.

Occurrence of genes encoding resistance to benzalkonium chloride, cadmium, and arsenic in L. monocytogenes of various origin.

Origin of strains No. of tested strains No. of strains (%) carrying genes encoding resistance to
Benzalkonium chloride Cadmium Arsenic
Human 132 8 (6.1%) 35 (26.5%) 16 (12.1%)
Food 106 10 (9.4%) 39 (36.8%) 25 (23.6%)
Environment 32 1 (3.1%) 2 (6.3%) 1 (3.1%)
Total 270 19 (7.0%) 75 (27.8%) 42 (15.6%)