Seasonal dynamics and microgeographical spatial heterogeneity of malaria along the China-Myanmar border

Acta Tropica
Yue HuLiwang Cui

Abstract

Malaria transmission is heterogeneous in the Greater Mekong Subregion with most of the cases occurring along international borders. Knowledge of transmission hotspots is essential for targeted malaria control and elimination in this region. This study aimed to determine the dynamics of malaria transmission and possible existence of transmission hotspots on a microgeographical scale along the China-Myanmar border. Microscopically confirmed clinical malaria cases were recorded in five border villages through a recently established surveillance system between January 2011 and December 2014. A total of 424 clinical cases with confirmed spatial and temporal information were analyzed, of which 330 (77.8%) were Plasmodium vivax and 88 (20.8%) were Plasmodium falciparum, respectively. The P. vivax and P. falciparum case ratio increased dramatically from 2.2 in 2011 to 4.7 in 2014, demonstrating that P. vivax malaria has become the predominant parasite species. Clinical infections showed a strong bimodal seasonality. There were significant differences in monthly average incidence rates among the study villages with rates in a village in China being 3-8 folds lower than those in nearby villages in Myanmar. Spatial analysis revealed the p...Continue Reading

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Citations

Apr 28, 2019·The Journal of Infectious Diseases·Melanie Bannister-TyrrellWim Van Bortel
Jul 13, 2018·Malaria Journal·Andrés NoéRichard James Maude
Dec 1, 2017·PLoS Medicine·UNKNOWN malERA Refresh Consultative Panel on Combination Interventions and Modelling
Aug 15, 2017·Bulletin of the World Health Organization·Shengjie LaiHongjie Yu
Feb 6, 2017·Malaria Journal·Brechje de GierGerard J B Sonder
Mar 17, 2019·Malaria Journal·Dwi Sarwani Sri RejekiHari Kusnanto

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