JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES)

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A 2D minimal spanning tree model of the spatial structures of natural focal disease

TANG Fang1,2, ZHANG Yingqian3, WANG Zhiqiang4, KANG Dianmin4,
WANG Jiezhen1, XUE Fuzhong1   

  1. (1. School of Public Health, School of Medicine, Shandong University, Jinan 250012, China;
    2. Qianfoshan Hospital of Shandong Province, Shandong University, Jinan 250014, China; 3. School of Medicine,
    Shandong University, Jinan 250012, China;
    4. Shandong Center for Disease Control and Prevention, Jinan 250014, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-01-16 Published:2009-01-16
  • Contact: XUE Fuzhong

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Abstract: To explore the application and geoepidemiological significance of the 2D minimal spanning tree model (MST) in analyzing the spatial structure of natural focal disease. MethodsBased on the foundation of spatial hierarchy clustering and combing graph theory with a path analysis of panbiogeography, we set up the 2D graphic MST model of the framework of geographic information system (GIS). To verify the model, structures of the natural focus of Hemorrhagic fever with renal syndrome (HFRS) of Shandong Province were identified. ResultsThe MST model could not only analyze the comparability of structures but also infer the ecological or epidemiological association and the spatiotemporal trace of diseases. ConclusionThe MST model is a useful method in analyzing spatial structures of natural focal diseases.

Key words: Natural focal disease, Spatial structure of natural focus, Minimal spanning tree model

CLC Number: 

  • R1812
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