墨西哥城的登革热蚊子——埃及伊蚊。早期入侵及其潜在风险。
Aedes aegypti, the dengue fever mosquito in Mexico City. Early invasion and its potential risks.
机构信息
Sub-directorate of Epidemiology Surveillance and Evaluation. Mexico City Health Services, Mexico City. Mexico.
Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City. Mexico.
出版信息
Gac Med Mex. 2020;156(5):382-389. doi: 10.24875/GMM.M20000425.
INTRODUCTION
Mexico City has no endemic presence of Aedes aegypti, and it is therefore free of vector-borne diseases, such as dengue fever, Zika and chikungunya. However, evidence has shown the presence of Aedes aegypti eggs in the city since 2015.
OBJECTIVE
To report the constant and increasing presence of Aedes aegypti eggs in Mexico City from 2015 to 2018.
METHODS
Surveillance was carried out using ovitraps. Eggs were counted and hatched in order to determine the species.
RESULTS
From 2015 to 2018, 378 organisms were identified as Ae. aegypti. In total, 76 Aedes aegypti-positive ovitraps were collected at 50 different places in 11 boroughs of the city. Northeastern Mexico City was the area with the highest number of positive traps.
CONCLUSIONS
The results may be indicating a period of early colonization and the probable existence of cryptic colonies of the mosquito; Mexico City could be at risk of experiencing vector-borne epidemics.
简介
墨西哥城没有埃及伊蚊的地方性存在，因此没有媒介传播疾病，如登革热、寨卡和基孔肯雅热。然而，有证据表明自 2015 年以来，该市已存在埃及伊蚊卵。
目的
报告 2015 年至 2018 年期间墨西哥城埃及伊蚊卵的持续和不断增加。
方法
使用诱卵器进行监测。对卵进行计数和孵化，以确定物种。
结果
2015 年至 2018 年间，共鉴定出 378 个埃及伊蚊。在该市 11 个行政区的 50 个不同地点共收集到 76 个埃及伊蚊阳性诱卵器。墨西哥城东北部是阳性诱卵器数量最多的地区。
结论
这些结果可能表明存在一个早期殖民化阶段和可能存在隐性蚊子种群；墨西哥城可能面临媒介传播流行病的风险。
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