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Gaceta médica de México
On-line version ISSN 2696-1288Print version ISSN 0016-3813
Abstract
MEJIA-GUEVARA, María D. et al. Aedes aegypti, the dengue fever mosquito in Mexico City. Early invasion and its potential risks. Gac. Méd. Méx [online]. 2020, vol.156, n.5, pp.388-395. Epub May 27, 2021. ISSN 2696-1288. https://doi.org/10.24875/gmm.20000009.
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, and Mexico City could be therefore at risk of experiencing vector-borne epidemics.
Keywords : Aedes aegypti; Mexico City; Vector-borne diseases; Mosquitoes Entomological surveillance.