气候与地理因素对猪链球菌跨物种传播的影响机制

打开文本图片集

中图分类号：S855.99 文献标识码:A 文章编码：1005-8567(2025)06-0035-06

Cross-species Transmission Mechanisms of Streptococcus suis Influenced by Climate and Geographical Factors

WUHanguang,LI Yingxin,CHENYuqing,SHI Yuanguo,LIFan,LI Wenxuan,ZHOU Jianzhuo,KEYankun* (Shenzhen CenterforAnimal andPlant DiseasePreventionandControl,Shenzhen Guangdong518000)

Abstract：Streptococcus suis，S.suis isa significant zoonotic pathogen exhibiting distinct spatiotemporal distribution patterns incros-species transmission.Thisreviewsystematically examines how climateand geographical factors influence the transmission dynamics of S. suis.Through comprehensive analysis of global literature from 2O0O to 2024，we demonstrate that：climate elementsregulate both the seasonality and intensityof transmision risk by affectingpathogensurvival intheenvironment,host immune status，and vectoractivity；geographicalisolationshapes the genetic diversity and population structure of S⋅ .suis in different regions,forming genotype distribution patterns with distinctregional characteristics；SoutheastAsia isa global transmision“hotspot”，where thecombinationof high temperatureand humidityclimate with foodborne transmission significantlyincreases human infectionrisk；serotype 2 S.suis shows obvious advantages incross-species transmisson with strong“serotype filtering” effects.Based on the climate-geography-pathogen ternary interactionmechanism，multi-factorrisk assssmentmodelsand differentiated prevention strategies areproposed to provide theoretical basis for constructing scientificearly warning systems and formulatingprecise control measures.

Keywords:Streptococcus suis；Zoonotic disease；Cross-species transmission；Climatic factors；Geographical listribution

猪链球菌(Streptococcussuis，S.suis)是对全球养猪业造成危害严重的细菌性病原体，能够引起猪的脑膜炎、败血症、关节炎和肺炎等多种疾病，给全球养猪业造成巨大经济损失[1]。（剩余11705字）