Memorias do Instituto Oswaldo Cruz · 2026
Aedes vittatus in Haiti: continued expansion across the Caribbean and implications for the Americas.
СтатьяНазвание и аннотация: Перевод пока не подготовлен
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St-Louis Daphenide, Boussès Philippe, Talignani Loïc, Lasica Chrystelle, Emmanuel Evens, Simard Frédéric, Roiz David
Аннотация
BACKGROUND: Aedes 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.
OBJECTIVES: This study aimed to provide evidence of the establishment of Ae. vittatus in Haiti.
METHODS: Larval 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.
FINDINGS: We 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 CONCLUSIONS: Given 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.
OBJECTIVES: This study aimed to provide evidence of the establishment of Ae. vittatus in Haiti.
METHODS: Larval 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.
FINDINGS: We 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 CONCLUSIONS: Given 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.