SALOMON Oscar Daniel
Lutzomyia longipalpis (Diptera: Psychodidae) Argentina-Bolivia border: new report and genetic diversity
QUINTANA MG; PECH-MAY A; FUENZALIDA AD; DIRENI MANCINI JM; BARROSO PA; YADON ZE; ZAIDENBERG M; SALOMÓN, OD
MEMÃ³RIAS DO INSTITUTO OSWALDO CRUZ.
FUNDACO OSWALDO CRUZ
Lugar: Rio de Janeiro; Año: 2019 vol. 114
American visceral leishmaniasis (AVL) has two main scenarios of transmission as follows: scattered cases in rural areas and urban outbreaks. Urban AVL is in active dispersion from the northeastern border of Argentina-Paraguay-Brazil to the South. The presence of Lutzomyia longipalpis was initially reported in urban environments in the northwestern border of the country. The presence of Lu. longipalpis, environmental variables associated with its distribution, and its genetic diversity were assessed in Salvador Mazza, Argentina, on the border with Bolivia. The genetic analysis showed high haplotype diversity, low nucleotidediversity, and low nucleotide polymorphism index. We discuss the hypothesis of an expanding urban population with introgressive hybridisation of older haplogroups found in their path in natural forest or rural environments, acquiring a new adaptability to urban environments, and the possibility of changes in vector capacity.