Microgeographic Heterogeneity of Border Malaria During Elimination Phase, Yunnan Province, China, 2011–2013

Details

• Alternative Title:
  Emerg Infect Dis
• Personal Author:
  Xu, Xin ; Zhou, Guofa ; Wang, Ying ; Hu, Yue ; Ruan, Yonghua ; Fan, Qi ; Yang, Zhaoqing ; Yan, Guiyun ; Cui, Liwang
• Description:
  To identify township-level high-risk foci of malaria transmission in Yunnan Province, China, along the international border, we retrospectively reviewed data collected in hospitals and clinics of 58 townships in 4 counties during 2011-2013. We analyzed spatiotemporal distribution, especially hot spots of confirmed malaria, using geographic information systems and Getis-Ord Gi*(d) cluster analysis. Malaria incidence, transmission seasonality, and Plasmodium vivax:P. falciparum ratio remained almost unchanged from 2011 to 2013, but heterogeneity in distribution increased. The number of townships with confirmed malaria decreased significantly during the 3 years; incidence became increasingly concentrated within a few townships. High-/low-incidence clusters of P. falciparum shifted in location and size every year, whereas the locations of high-incidence P. vivax townships remained unchanged. All high-incidence clusters were located along the China-Myanmar border. Because of increasing heterogeneity in malaria distribution, microgeographic analysis of malaria transmission hot spots provided useful information for designing targeted malaria intervention during the elimination phase.
• Subjects:
  Disease Eradication/history* Female History, 21st Century Humans Malaria Male Plasmodium Research Risk Factors Seasons Time Factors

  More +
• Source:
  Emerg Infect Dis. 22(8):1363-1370.
• Pubmed ID:
  27433877
• Pubmed Central ID:
  PMC4982164
• Document Type:
  Journal Article
• Place as Subject:
  China ; Myanmar
• Location:
  Asia
• Volume:
  22
• Issue:
  8
• Collection(s):
  Emerging Infectious Diseases
• Main Document Checksum:
  urn:sha256:143c43b00f818287821842f2a1f10679129a2f11406fa321566ac72ad1cac63d
• Download URL:
  https://stacks.cdc.gov/view/cdc/40840/cdc_40840_DS1.pdf
• File Type:
  [PDF - 2.18 MB ]