Influence of Host and Environmental Factors on the Distribution of the Japanese Encephalitis Vector Culex tritaeniorhynchus in China

International Journal of Environmental Research and Public Health
Boyang LiuHongbin Wang

Abstract

Culex tritaeniorhynchus is an important vector that transmits a variety of human and animal diseases. Japanese encephalitis (JE), an endemic disease in the Asia-Pacific region, is primarily transmitted by Cx. tritaeniorhynchus. Insufficient monitoring of vector mosquitoes has led to a poor understanding of the distribution of Cx. tritaeniorhynchus in China. To delineate the habitat of Cx. tritaeniorhynchus and any host and environmental factors that affect its distribution, we used a maximum entropy modeling method to predict its distribution in China. Our models provided high resolution predictions on the potential distribution of Cx. tritaeniorhynchus. The predicted suitable habitats of the JE vector were correlated with areas of high JE incidence in parts of China. Factors driving the distribution of Cx. tritaeniorhynchus in China were also revealed by our models. Furthermore, human population density and the maximum NDVI were the most important predictors in our models. Bioclimate factors and elevation also significantly impacted the distribution of Cx. tritaeniorhynchus. Our findings may serve as a reference for vector and disease control.

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Citations

Jan 5, 2020·Tropical Animal Health and Production·Archibold G BakareJames Madzimure
Jul 11, 2019·Insects·Emily L PascoeJanet E Foley
Oct 31, 2020·The American Journal of Tropical Medicine and Hygiene·Zhidong LiuPeng Bi
Apr 27, 2021·International Journal for Parasitology. Parasites and Wildlife·Ajib DiptyanusaTri Baskoro Tunggul Satoto
Jun 22, 2021·PLoS Neglected Tropical Diseases·Tuyen V HaHu Suk Lee

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