Group of disorders that destroy veins and arteries by inflammation, occurring anywhere in the body, with resultant bleeds, pain, fever, weight loss, and other symptoms. Can be caused by Hepatitis C, HIV, Parvovirus B19, Hepatitis B virus and the protozoan Sarcocystis.Encyclopedia Entry for Vasculitis :Vasculitis. Can be caused by Hepatitis C, HIV, Parvovirus B19, hepatitis B virus and the protozoan Sarcocystis.Information from Marcello Allegretti.