A method for determining the risk of cardiovascular disease in a subject having a chronic viral infection includes determining a level of ectonucleotide pyrophosphatase/phosphodiesterase-2 (ENPP2) in the subject and comparing the determined level of ENPP2 to a control level, wherein an increased level of ENPP2 is indicative of the subject having an increased risk of cardiovascular disease associated with the chronic viral infection.