| seroprevalence of orthopox virus specific antibodies in red foxes (vulpes vulpes) in the federal state brandenburg, germany. | the prevalence of orthopox virus (opv)-specific antibodies in 1,040 red foxes (vulpes vulpes) was evaluated on a large scale in the german federal state brandenburg. serum samples were selected from 809 communities within the study area from january 1991 to september 1994 by simple random sampling. screening was carried out by an indirect enzyme-linked immunosorbent assay (elisa). orthopox virus-specific antibodies were found in 162 (16%) of the 1,040 fox sera. furthermore 154 (15%) sera were co ... | 1996 | 8722277 |