junin virus activity in rodents from endemic and nonendemic loci in central argentina. | small mammals were trapped during a 21-month period at 27 farm sites in 15 localities within and beyond the known endemic area for argentine hemorrhagic fever (ahf). prevalence of junin virus (jv) was assessed by antigen-capture enzyme immunoassay (elisa) on samples of body fluids and/or organs from 3, 282 captured rodents. infection in rodent populations was variable (0-3.7%) among localities but, in all cases, was lower than previously reported rates. overall prevalence was 1.4% in the ahf epi ... | 1991 | 1650148 |