Construction of Mapping Method for Foodborne Diseases Based on Variable Bandwidth:A Case Study of Vibrio parahaemolyticus
Foodborne disease is one of the global public health problems.It is of great significance to identify the high-risk areas of positive pathogens of foodborne diseases and constructing fine-scale spatial mapping.On the basis of kernel density analysis,a case-location-aware adaptive kernel density(CLA-AKD)was proposed in this study.Furthermore,this method was applied to conduct the spatial point pattern analysis of bacterial foodborne diseases caused by Vibrio parahaemolyticus in Zhejiang Province and explore its spatial aggregation characteristics.The results showed that the positive detection rate of Vibrio parahaemolyticus infection showed significant spatial aggregation characteristics in Zhejiang Province.The positive detection rate was relatively high in the coastal areas of Zhejiang Province,especially in areas such as Huzhou,Shaoxing,Ningbo,and Wenzhou,where obvious"high-high"clustering areas have been detected.The results provided new methods for exploring targeted measures for the prevention and control of foodborne diseases.