ArticleMemorias do Instituto Oswaldo Cruz2026
Aedes vittatus in Haiti: continued expansion across the Caribbean and implications for the Americas.
Article in Memorias do Instituto Oswaldo Cruz, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundAedes vittatus, an emerging invasive species and arboviral vector with high ecological plasticity and dispersal capacity, is expanding in the Caribbean, being detected in the Dominican Republic, Cuba, and Jamaica and recently in Yucatán, Mexico.
objectivesThis study aimed to provide evidence of the establishment of Ae. vittatus in Haiti.
methodsLarval surveys were conducted in 18 localities within 12 municipalities in the North and Northeast departments of Haiti. Specimens were identified morphologically and confirmed by COI-based DNA barcoding.
findingsWe report, for the first time, the detection of the invasive vector Ae. (Fredwardsius) vittatus in Haiti, confirmed morphologically and molecularly, with the species detected in half of the municipalities sampled. Phylogenetic analyses placed Haitian specimens within a Caribbean/American group, closely related to sequences from Mexico. Additional mosquito species were identified, including first records of Culex garciai and Culex interrogator in Haiti. MAIN
conclusionsGiven its potential role as a vector of chikungunya, dengue, Zika and yellow fever, continued entomological surveillance and early detection in the Caribbean and the Americas are needed.
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