Conversations Lecture-Viral Underclass w/ Steven w. Thrasher & Samuel K. Roberts IRAAS hosted the conversation “Viral Underclass: The Human Toll When Inequality & Disease Collide” with author Steven w. Thrasher and Professor Samuel K. Roberts. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window) Related