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. 2019 Jan;25(1):144-147.
doi: 10.3201/eid2501.181103.

New Multidrug-Resistant Salmonella enterica Serovar Anatum Clone, Taiwan, 2015-2017

Chien-Shun Chiou, Yu-Ping Hong, Ying-Shu Liao, You-Wun Wang, Yueh-Hua Tu, Bo-Han Chen, Yi-Syong Chen

New Multidrug-Resistant Salmonella enterica Serovar Anatum Clone, Taiwan, 2015-2017

Chien-Shun Chiou et al. Emerg Infect Dis. 2019 Jan.

Abstract

In 2011, a Salmonella enterica serovar Anatum clone emerged in Taiwan. During 2016-2017, infections increased dramatically, strongly associated with emergence and spread of multidrug-resistant strains with a plasmid carrying 11 resistance genes, including blaDHA-1. Because these resistant strains infect humans and food animals, control measures are urgently needed.

Keywords: Salmonella enterica serovar Anatum; Taiwan; antimicrobial resistance; bacteria; molecular epidemiology; multidrug resistance.

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Figures

Figure 1
Figure 1
Distribution of the 6 most frequently identified Salmonella enterica serovars in Taiwan, 2004–2017. Numbers indicate increasing frequency of Salmonella Anatum.
Figure 2
Figure 2
Dendrogram of 36 representative Salmonella enterica serovar Anatum strains from Taiwan, 2004–2017, constructed with whole-genome SNP profiles with 883 SNPs. The complete genomic sequence of Salmonella Anatum strain GT-38 (GenBank accession no. CP013226) was used as the reference for SNP calling. Red, resistant; yellow, intermediate; green, susceptible. Lanes: 1, cefoxitin; 2, cefotaxime; 3, ceftazidime; 4, ertapenem; 5, nalidixic acid; 6, ciprofloxacin; 7, gentamicin; 8, ampicillin; 9, chloramphenicol; 10, streptomycin; 11, sulfamethoxazole; 12, tetracycline; 13, sulfamethoxazole/trimethoprim; 14, colistin. L, lineage; PFGE, pulsed-field gel electrophoresis; SNP, single-nucleotide polymorphism.
See this image and copyright information in PMC

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