antibodies to hemorrhagic fever viruses in domestic livestock in niger: rift valley fever and crimean-congo hemorrhagic fever.a repository of domestic animal sera collected in niger between 1984 and 1988 was assayed for antibody against two zoonotic hemorrhagic fever viruses known to be present in the west african sahel. a total of 2,540 serum samples from 2,324 cattle, sheep, goats, and camels were tested by an igg-specific enzyme-linked immunosorbent assay (elisa) and the 80% plaque reduction neutralization test (prnt80) for rift valley fever (rvf) virus antibody. of the 2,540 sera tested for rvf-specific igg antibod ...19957573699
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