The first record of Lutzomyia longipalpis in the Argentine northwest

Abstract

In 2004, the urban presence of Lutzomyia longipalpis was recorded for the first time in Formosa province. In 2006, the first autochthonous case of human urban visceral leishmaniasis (VL) was recorded in Misiones in the presence of the vector, along with some canine VL cases. After this first case, the vector began to spread primarily in northeast Argentina. Between 2008-2011, three human VL cases were reported in Salta province, but the presence of Lu. longipalpis was not recorded. Captures of Phlebotominae were made in Tartagal, Salta, in 2013, and the presence of Lu. longipalpis was first recorded in northwest Argentina at that time. Systematic sampling is recommended to observe the distribution and dispersion patterns of Lu. longipalpis and consider the risk of VL transmission in the region.

Temporal distribution of, and effect of anthropic modifications on, phlebotomine populations in the Chaco Bioregion, Argentina

“…From 2006 to 2013, Lu. longipalpis extended its distribution to the centre and west of the country, including the provinces of Misiones (2006), Corrientes (2008-2009), Chaco, Entre Ríos (2010 and Salta (2013) (Salomón et al, 2011;Gómez Bravo et al, 2013). In 2009, the city of Corrientes reported active transmission of VL as a result of the continuous presence of Lu.…”

Visceral Leishmaniasis Caused by Leishmania infantum in Salta, Argentina: Possible Reservoirs and Vectors

“…longipalpis has been identified as the main vector of L. (L.) infantum in Brazil. 10 This species was also reported as the vector of L. (L.) infantum in NE Argentina, particularly in the city of Posadas 26 and recently in the city of Tartagal, 11 located less than 50 km apart from the probable site of infection of one of our two human index cases. Because our sandfly collection was obtained during the dry season, this study just allowed us to collect and identify a discrete number of sandflies, directly at the sites of probable infection of humans and dogs.…”

Sistemas de información geográfica y modelos de distribución de abundancia de Lutzomyia longipalpis sensu lato (Diptera: Psychodidae: Phlebotominae), a escala de foco urbano en la ciudad de Corrientes, Argentina

“…longipalpis s.l. Santini et al 2015 (Salomón et al 2008;Salomón et al 2011a;Gomez Bravo et al 2013). En el año 2010 se observó la posibilidad de la existencia de sub-poblaciones diferentes a la del norte de Brasil (Salomón et al 2010b).…”

“…longipalpis s.l. en la ciudad de Tartagal, provincia de Salta (Bravo et al 2013) se genera la hipótesis de que las poblaciones del noreste y noroeste sean de diferente origen. Estudios moleculares recientes llevados a cabo por investigadoras/es del CONICET/INMeT evidencian la existencia de dos poblaciones hermanas en el país (Pech May comunicación personal).…”

“…infantum, entre otros patógenos, considerando los puntos calientes equivalentes a los core-transmitters de la teoría 80-20 (Woolhouse et al 1997 (Fernández et al 2013;Gomez Bravo et al 2013;Santini et al 2015;Gomez Bravo et al 2017). El alto índice de ocurrencia, sumado a factores ambientales que benefician su reproducción y la presencia de caninos con LV que actúan como reservorios de Le.…”