Geographically dependent distribution of gyrA gene mutations at codons 83 and 87 in Salmonella Hadar, and a novel codon 81 Gly to His mutation in Salmonella Enteritidis.

Abstract excerpt

In all, 90 nalidixic acid-resistant clinical strains of Salmonella Hadar and Salmonella Enteritidis isolated in Norway but of predominantly foreign origin were subjected to sequencing of the gyrA, gyrB, parC and parE genes. All the isolates contained at least one mutation in gyrA codon 83 or codon 87. A highly significant correlation between mutations in gyrA codon 83 and strains originating from Southeast Asia...

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