Blood Phase:
• High-titer viremia is present during the acute illness
(out to 21 days in Kikwit, DRC outbreak in 1995).
• Prolonged presence of viral RNA in semen and vaginal
fluids (>100 days) has been demonstrated in a limited
number of patients.
• Asymptomatic viremia before symptoms has not
been described but has not been rigorously pursued.