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Distribución de Lutzomyia longipalpis en la Mesopotamia Argentina, 2010

Keywords: lutzomyia longipalpis, visceral leishmaniasis, puerto iguazú, entre ríos, corrientes.

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the first case of visceral leishmaniasis (vl) in argentina was reported in 2006 in posadas, misiones. during the summer 2008-2009 lutzomyia longipalpis, the vl vector, and canine vl cases were already spread along the province of corrientes. in order to know the distribution of vl risk, systematic captures of the vector were performed between february and march 2010, in 18 areas of the provinces of entre ríos and corrientes, and the city of puerto iguazú, misiones, with a total of 313 traps/night. we confirmed the presence of lu. longipalpis, for the first time in chajarí (entre ríos), alvear, la cruz, curuzú cuatiá and bella vista (corrientes), and puerto iguazú (misiones). in santo tome and monte caseros (corrientes), where the vector had been previously reported, traps with more samples were obtained with 830 and 126 lu. longipalpis trap/site/night respectively. these results show that the vector of urban vl continues spreading in the argentine territory. simultaneously, the spread of the parasite and the resulting human vl cases are associated with the dispersion of reservoirs, infected dogs, with or without clinical symptoms or signs, due to human transit.


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