| field studies on the epidemiology of venezuelan hemorrhagic fever: implication of the cotton rat sigmodon alstoni as the probable rodent reservoir. | during february 1992, field studies on the epidemiology of venezuelan hemorrhagic fever (vhf) were carried out in a rural area of portuguesa state in central venezuela. the objective of this work was to determine the prevalence of infection with guanarito virus, the etiologic agent of vhf, among wild rodents and humans living within an endemic focus of the disease. a total of 234 rodents, representing nine different species, were collected and their spleens were cultured for virus. thirty-one gu ... | 1993 | 8395143 |