Beijing Institute of Microbiology and Epidemiology reports enteric fever cases in China shift eastward since 2009; study identifies two main cluster areas in Guangxi-Guizhou-Yunnan and Zhejiang regions from 2001-2020 data

May 2, 2025 (Daily China News) –

2025 MAY 02 (NewsRx) -- By a News Reporter-Staff News Editor at Daily China News -- New research on Salmonella Diseases and Conditions - Typhoid Fever is the subject of a report. According to news reporting from Beijing , People’s Republic of China , by NewsRx journalists, research stated, “Enteric fever primarily affects the southwestern and central regions of China . Although the overall incidence rate has declined, certain areas have seen an increase in cases, necessitating further investigation into their geographic distribution, clustering areas, and potential influencing factors.”

The news correspondents obtained a quote from the research from the Beijing Institute of Microbiology and Epidemiology , “City-level data from 2001 to 2020 were analyzed. Spatial clustering was identified, and wavelet transform analysis explored periodic and seasonal characteristics. Determinants were identified using generalized estimating equation and distributed lag non-linear model. Incidence declined from 2001 to 2008 but leveled off since 2009, shifting eastward. Two clustering areas were identified: Guangxi - Guizhou - Yunnan and Zhejiang . In the Zhejiang , incidence was negatively correlated with GDP per capita and popularization rate of safe drinking water in rural areas. Temperature and relative humidity had delayed effects on incidence in Zhejiang , showing linear or parabolic patterns. In the Guangxi - Guizhou - Yunnan , incidence was positively correlated with the proportion of water bodies. Temperature and relative humidity had delayed effects on incidence in Guangxi - Guizhou - Yunnan , and these effects exhibited fluctuating patterns. Over the past 20 years, enteric fever incidence in China has shown a rapid early decline but has stabilized more recently.”

According to the news reporters, the research concluded: “The factors influencing enteric fever prevalence vary between clustering areas, indicating the need for region-specific measures.”

For more information on this research see: Spatiotemporal distribution and influencing factors of enteric fever in China : a cluster analysis based on data from 2001 to 2020. Frontiers in Public Health, 2025;13:1550904. Frontiers in Public Health can be contacted at: Frontiers Media Sa , Avenue Du Tribunal Federal 34, Lausanne, Ch-1015, Switzerland .

Our news journalists report that additional information may be obtained by contacting Yao Tian , State Key Laboratory of Pathogen and Biosecurity , Beijing Institute of Microbiology and Epidemiology , Beijing , People’s Republic of China . Additional authors for this research include Shumei Huang , Meiying Yan , Chen-Long Lv, Li-Qun Fang and Biao Kan .

The direct object identifier (DOI) for that additional information is: https://doi.org/10.3389/fpubh.2025.1550904. This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.

Publisher contact information for the journal Frontiers in Public Health is: Frontiers Media Sa , Avenue Du Tribunal Federal 34, Lausanne, Ch-1015, Switzerland .

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