BECAS
BURGOS eliana florencia
congresos y reuniones científicas
Título:
First record of orthohantavirus circulating in Akodon montensis population in Argentina. Where are the infected individuals?.
Autor/es:
BURGOS, E. F.; VADELL, M. V.; BELLOMO, C. M.; MARTINEZ, V. P.; SALOMON, O. D.; GÓMEZ VILLAFAÑE, I. E.
Reunión:
Otro; 100 virtual Meeting of American Society of Mammalogist; 2021
Institución organizadora:
American Society of Mammalogist
Resumen:
The genus Orthohantavirus is a diverse and worldwide group of viruses, some of which cause Hantavirus Pulmonary Syndrome (HPS), an endemic disease of the Americas transmitted by cricetid rodents. Due to their great diversity and the lack of sufficient studies in remote areas, it is almost certain that the number of reservoirs is underestimated. The aims of this work were to identify orthohantavirus hosts in the rodent community of northern Misiones, Argentina, and to study the spatial variation in the prevalence of infection. Live-capture sessions were carried out seasonality during two years (2017-2020) in urban, peri-urban, rural and natural protected areas. The association among seroprevalence and trap success, richness and diversity of the rodent community was analysed by means of Generalized Linear Models. With an effort of 30,783 traps-night, we captured 719 animals from ten species. We reported a previously unidentified Akodon-borne orthohantavirus circulating in the A. montensis populations only in natural protected and peri-urban areas in Misiones with a seroprevalence of 3.23% and 3.63% respectively, despite the fact that this specie was also present in rural areas. We did not detect any association between orthohantavirus infection with richness and diversity of the rodent community. However, the association between the seroprevalence and host abundance could be related with a threshold population density below which the virus is prone to experience local extinction.