RESUMEN
In natural foci of hemorrhagic fever with renal syndrome (HFRS) located in agricultural landscapes, rodents of various species are infected with the virus, however, regular HFRS epizootics are observed in field mice which present the highest abundance of infected animals in the population. Annually, a high direct correlation is observed between the population density of rodents and the percentage of animals with HFRS virus antigen in the blood and lungs. In 1981, there was a high correlation between the occurrence of rodents with Gamasid mites and the presence of the antigen in the blood. All the foregoing suggests that HFRS agent exists in natural foci due to a combination of different transmission mechanisms (obligate-transmissive mechanism) and penetrates into murine rodents by various modes: air--dust-borne and/or alimentary and transmissive. Non-transmissive modes are likely to be the leading ones.
Asunto(s)
Brotes de Enfermedades , Reservorios de Enfermedades , Fiebre Hemorrágica con Síndrome Renal/inmunología , Animales , Antígenos Virales/análisis , Orthohantavirus/inmunología , Fiebre Hemorrágica con Síndrome Renal/epidemiología , Fiebre Hemorrágica con Síndrome Renal/parasitología , Enfermedades de los Roedores/epidemiología , Enfermedades de los Roedores/inmunología , Enfermedades de los Roedores/parasitología , Roedores , Estaciones del Año , SiberiaRESUMEN
A complex of possible vectors and reservoirs of infection in nature has been investigated in five different nidi of hemorrhagic fever with the renal syndrome in the Primorje territory. 2455 ixodid ticks, 19 458 trombiculid mites, 10 942 gamasid mites and 2138 fleas were collected from 1700 small mammals. It has been established that every investigated nidus differs in a peculiar specific composition and ratio between small mammals and their ectoparasites.