Low‐dose oral interferon alpha as prophylaxis against viral respiratory illness: a double‐blind, parallel controlled trial during an influenza pandemic year

Abstract

Low-dose oral IFNα prophylaxis was not effective in limiting the overall incidence of ARI in our study population. However, there was evidence that prophylaxis reduced the severity of symptoms and had a beneficial effect in some subpopulations, including those who received the 2009 seasonal trivalent influenza vaccination.