关键词: 自然疫源性疾病, 空间扫描统计, 地理信息系统, 早期预警

Abstract:

Objective To explore the spatial distribution of 4 natural foci diseases in Gansu province and provide theoretical basis for the diseases prevention and control. Methods Spatial clustering analysis was used to draw the higher incidence areas of 4 natural foci diseases from 2009 to 2013 in Gansu province, simultaneously, Geographic Information System(GIS) was also employed to visualize results of cluster detection tests. Results The results of the spatial clustering detection showed that the districts with spatial aggregation display a marked difference of 4 natural foci diseases. The hemorrhagic fever, brucellosis and anthrax mainly concentrated in the humid region in southeast of Gansu province, the cases were more prevalent in southeast and less in northwest. The brucellosis and anthrax high-risk areas mainly concentrated in the pastoral areas, while malaria high-risk areas mainly concentrated in western Gansu. Conclusion The early warning system based on flexible spatial scan statistic and geographical information system could work efficiently.

Key words: Natural foci diseases, Spatial scan statistic, Geographic information system, Early warning