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Title: | Hantavirus ecology in rodent populations in three protected areas of Argentina | Authors: | Vadell, María Victoria Bellomo, Carla San Martín, A Padula, Paula Gómez Villafañe, Isabel E. |
Keywords: | Animales;Anticuerpos Antivirales;Argentina;Ecología;Femenino;Infecciones por Hantavirus;Humanos;Masculino;Enfermedades de los Roedores;Roedores;Estaciones del Año;Reservorios de Enfermedades;Hantavirus | Issue Date: | Oct-2011 | Publisher: | London School of Hygiene and Tropical Medicine Swiss Tropical Institute Basel Foundation Tropical Medicine and International Healt Belgian Institute of Tropical Medicine Antwerpen Bernhard-Nocht-Institute for Tropical Medicine Hamburg Federation of European Societies for Tropical Medicine and International Health Wiley |
Project: | datasets | Journal: | Tropical medicine & international health : TM & IH | Abstract: | In this study, we identified hantavirus genotypes and their reservoirs and evaluated the spatial and temporal distribution of the virus in rodent population in three protected areas of Argentina over 3 years (2007-2010). A total of 837 rodents were captured with an effort of 22 117 trap-nights. We detected the genotype Lechiguanas in Oligoryzomys nigripes and O. flavescens and Pergamino in Akodon azarae. There was no correlation between seroprevalence and trap success of the host. The proportion of seropositive males was significantly higher than the proportion of seropositive females. The total length of seropositives was higher than that of seronegatives in each host species. Seropositive individuals were observed in warm months and not in cold months, which suggests an infection cycle. This investigation confirms that protected areas of central east Argentina are places with a variety of sylvan rodents species associated with different hantavirus genotypes where reservoirs are numerically dominant. Although there was more than one known reservoir of hantavirus, only one species had antibodies in each area. This can be explained because the transmission of the virus does need not only the presence of a rodent species but also a threshold density. Longevity of even a small proportion of the host population in cold months may provide a trans-seasonal mechanism for virus persistence. The seroprevalence detected was higher than the one found before in rodent populations of Argentina, and this explains the appearance of human cases in two of these three areas. |
Description: | Fil: Vadell, María Victoria. Universidad de Buenos Aires. Laboratorio de Ecología de Poblaciones; Argentina. Fil: Bellomo, Carla. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas; Argentina. Fil: San Martín, A. Universidad de Buenos Aires. Laboratorio de Ecología de Poblaciones; Argentina. Fil: Padula, Paula. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas; Argentina. Fil: Gómez Villafañe, Isabel E. Universidad de Buenos Aires. Laboratorio de Ecología de Poblaciones; Argentina. |
URI: | http://sgc.anlis.gob.ar/handle/123456789/2149 | DOI: | 10.1111/j.1365-3156.2011.02838.x | Rights: | Open Access |
Appears in Collections: | Publicaciones INEI |
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Tropical Medicine and International Health_2011_16_10_p1342-p1352.pdf | Artículo en inglés | 433.22 kB | Adobe PDF | View/Open |
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