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. 2024 Nov 22;6(47):1236-1241.
doi: 10.46234/ccdcw2024.248.

Hidden Spread of Rare Salmonella Serovars Isolated from Healthy Individuals - Yulin City, Guangxi Zhuang Autonomous Region, China, 2013-2022

Yao Peng  1 , Mengyu Wang  1   2 , Changyu Zhou  3 , Zhenpeng Li  1 , Zhe Li  1 , Yuan Zhang  1 , Biao Kan  1 , Ming Luo  3 , Xin Lu  1
Affiliations

Hidden Spread of Rare Salmonella Serovars Isolated from Healthy Individuals - Yulin City, Guangxi Zhuang Autonomous Region, China, 2013-2022

Yao Peng et al. China CDC Wkly. .

Abstract

What is already known about this topic?: The emergence of rare multidrug-resistant Salmonella serovars is increasingly common in developing countries, posing a significant public health risk.

What is added by this report?: This report identified five rare Salmonella serovars in China for the first time and using whole-genome sequencing, identified their hidden spread among healthy individuals. Additionally, antibiotic resistance genes and virulence genes were identified.

What are the implications for public health practice?: Healthy individuals, especially food handlers, may be sources of hidden Salmonella dissemination. Therefore, monitoring Salmonella prevalence in healthy individuals is important for understanding and managing the risks of foodborne illness.

Keywords: Healthy individuals; Hidden spread; Rare Salmonella.

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Conflict of interest statement

No conflicts of interest.

Figures

Figure 1
Figure 1
Distribution of plasmids and antimicrobial resistance genes (ARGs) among the studied isolates.
Figure 2
Figure 2
Phylogenetic tree of Salmonella Ouakam isolates. (A) Phylogenetic structure of 88 Salmonella Ouakam isolates, including 79 isolates from EnteroBase and 9 isolates from Yulin. (B) Phylogenetic tree of isolates belonging to group 2 in Figure 2A.
Figure 3
Figure 3
The phylogenetic tree of 116 S. Ealing isolates, including 114 isolates from EnteroBase and 2 isolates from Yulin City, Guangxi Zhuang Autonomous Region, China.
See this image and copyright information in PMC

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