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Table 7 Results of detection of virulence genes

From: Serotype, antimicrobial susceptibility and genotype profiles of Salmonella isolated from duck farms and a slaughterhouse in Shandong province, China

Virulence genes Farm 1 (n = 11) Farm 2 (n = 10) Farm 3 (n = 8) Farm 4 (n = 18) Slaughterhouse (n = 2) Total (n = 49)
invA 100.0 100.0 100.0 100.0 100.0 100.0
hilA 100.0 100.0 100.0 100.0 100.0 100.0
sipA 100.0 100.0 100.0 100.0 100.0 100.0
stnP1 100.0 100.0 87.5 94.4 0 91.8
ssrA 100.0 100.0 87.5 88.9 50.0 91.8
sipC 100.0 90.0 50.0 38.9 0 63.3
spvC 0 30.0 50.0 77.8 0 42.9
rck 0 30.0 62.5 61.1 0 38.8
sefA 0 0 50.0 77.8 50.0 38.8
pefA 0 30.0 50.0 66.7 0 38.8
sopB 45.5 50.0 50.0 22.2 0 36.7
ssaR 0 20.0 25.0 22.2 0 16.3
sopE 0 0 25.0 33.3 0 16.3