Postexposure prophylaxis for Lassa fever: Experience from a recent outbreak in Nigeria.

Background: Secondary transmission of Lassa fever (LF) occurs in the community and in health-care facilities, and is associated with high fatality in Nigeria. We investigated the role of oral ribavirin postexposure prophylaxis (orPEP) in preventing LF among the primary contacts of confirmed cases from December 2015 to March 2016.

Materials And Methods: Epidemiological and clinical data of LF contacts were prospectively collected.