The Anopheles community and the role of Anopheles minimus on malaria transmission on the China-Myanmar border

Yu, Guo; Yan, Guiyun; Zhang, Naixin; Zhong, Daibin; Wang, Ying; He, Zhengbo; Yan, Zhen‐Tian; Fu, Wenbo; FeiLong, Yang; Chen, Bin

doi:10.1186/1756-3305-6-264

Cited by 41 publications

(35 citation statements)

References 22 publications

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“…Mosquito densities varied from 0.05 to 3.00 females per trap per night, with strong seasonality in all sites and a density peak from June to August. Species richness peaked from April to August according to our previously reports (Bi et al, 2013b; Wang et al, 2015; Yu et al, 2013). …”

Section: Discussionsupporting

confidence: 60%

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

Zhou

Ruan

et al. 2016

Acta Tropica

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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 presence of clinical malaria hotspots in four villages. This information on malaria seasonal dynamics and transmission hotspots should be harnessed for planning targeted control.

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Section: Discussionsupporting

confidence: 60%

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

Zhou

Ruan

et al. 2016

Acta Tropica

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“…sinensis [54, 55], An. minimus shows a strong attraction to human than other hosts [56] and has a high human blood index [57] which has an implication for vector control interventions even though An. minimus is endophilic, endophagic, and susceptible to insecticides [55, 58].…”

Section: Discussionmentioning

confidence: 99%

Spatial and space–time distribution of Plasmodium vivax and Plasmodium falciparum malaria in China, 2005–2014

Hundessa

Williams

et al. 2016

Malar J

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BackgroundDespite the declining burden of malaria in China, the disease remains a significant public health problem with periodic outbreaks and spatial variation across the country. A better understanding of the spatial and temporal characteristics of malaria is essential for consolidating the disease control and elimination programme. This study aims to understand the spatial and spatiotemporal distribution of Plasmodium vivax and Plasmodium falciparum malaria in China during 2005–2009.MethodsGlobal Moran’s I statistics was used to detect a spatial distribution of local P. falciparum and P. vivax malaria at the county level. Spatial and space–time scan statistics were applied to detect spatial and spatiotemporal clusters, respectively.ResultsBoth P. vivax and P. falciparum malaria showed spatial autocorrelation. The most likely spatial cluster of P. vivax was detected in northern Anhui province between 2005 and 2009, and western Yunnan province between 2010 and 2014. For P. falciparum, the clusters included several counties of western Yunnan province from 2005 to 2011, Guangxi from 2012 to 2013, and Anhui in 2014. The most likely space–time clusters of P. vivax malaria and P. falciparum malaria were detected in northern Anhui province and western Yunnan province, respectively, during 2005–2009.ConclusionThe spatial and space–time cluster analysis identified high-risk areas and periods for both P. vivax and P. falciparum malaria. Both malaria types showed significant spatial and spatiotemporal variations. Contrary to P. vivax, the high-risk areas for P. falciparum malaria shifted from the west to the east of China. Further studies are required to examine the spatial changes in risk of malaria transmission and identify the underlying causes of elevated risk in the high-risk areas.Electronic supplementary materialThe online version of this article (doi:10.1186/s12936-016-1646-2) contains supplementary material, which is available to authorized users.

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“…A primary reason is that the local predominant anopheline species is A. sinensis , which is refractory to P. falciparium ( 11 , 12 ). …”

Section: Discussionmentioning

confidence: 99%

Malaria Imported from Ghana by Returning Gold Miners, China, 2013

Li¹,

Yang²,

Xiao³

et al. 2015

Emerg. Infect. Dis.

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The Anopheles community and the role of Anopheles minimus on malaria transmission on the China-Myanmar border

Cited by 41 publications

References 22 publications

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

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

Spatial and space–time distribution of Plasmodium vivax and Plasmodium falciparum malaria in China, 2005–2014

Malaria Imported from Ghana by Returning Gold Miners, China, 2013

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