Argentine hemorrhagic fever is a systemic viral disease caused by Juni
n virus, with a mortality of 15-30% in untreated individuals. Current
specific therapy is highly effective in reducing mortality, and consis
ts of the early administration of immune plasma in defined doses of sp
ecific neutralizing antibodies per kg of body weight. However, several
reasons suggest the need to investigate alternative therapies. Ribavi
rin, a broad spectrum antiviral agent, is effective in the treatment o
f other viral hemorrhagic fevers, and the studies done with Junin viru
s infections to date indicate that this drug may also have a beneficia
l effect in Argentine hemorrhagic fever