State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing City 102206, China.
WHO Collaborating Centre for Vector Surveillance and Management, Beijing City 102206, China.
Int J Environ Res Public Health. 2019 Apr 18;16(8):1407. doi: 10.3390/ijerph16081407.
Characterizing the breeding sites of complex is of major importance for the control of West Nile disease and other related diseases. However, little information is available about the characteristics and associated factors of the breeding sites of the complex in Lhasa, a representative high-altitude region in Southwestern China. In this study, a cross-sectional study concerning the breeding site characteristics and associated factors of the complex was carried out in Lhasa, Tibet from 2013-2016. Chi-square analysis and binary logistic regression analysis were applied to identify the key factors associated with the presence of complex larvae. Using a standard dipping method, 184 water bodies were examined and complex larvae were observed in 36 (19.57%) of them. There were significant differences in the composition of complex larvae among the breeding site stability (χ = 19.08, = 0.00) and presence or absence of predators (χ = 6.986, = 0.008). Binary logistic regression analysis indicated that breeding site stability and presence or absence of predators were significantly associated with the presence of complex larvae in Chengguan District, Lhasa. Relatively permanent water bodies such as water bodies along river fringes, ponds and puddles, and water bodies with no predators should be paid more attention for future complex larvae abatement campaigns in Lhasa, China.
描述复杂蚊种的孳生地对于控制西尼罗河病和其他相关疾病具有重要意义。然而，关于中国西南高海拔地区拉萨市复杂蚊种孳生地的特征及其相关因素的信息却很少。本研究于 2013-2016 年在西藏拉萨进行了一项有关复杂蚊种孳生地特征及其相关因素的横断面研究。应用卡方检验和二项逻辑回归分析来确定与复杂蚊种幼虫存在相关的关键因素。使用标准的浸渍法检查了 184 个水体，其中 36 个（19.57%）观察到了复杂蚊种幼虫。孳生地稳定性（χ = 19.08，P = 0.00）和是否存在捕食者（χ = 6.986，P = 0.008）之间复杂蚊种幼虫的组成存在显著差异。二项逻辑回归分析表明，在拉萨城关区，孳生地稳定性和是否存在捕食者与复杂蚊种幼虫的存在显著相关。在未来的拉萨市复杂蚊种幼虫防治工作中，应更加关注相对稳定的水体，如沿河岸的水体、池塘和水坑，以及没有捕食者的水体。
