Fig. 1From: A systematic literature review of the global seroprevalence of cytomegalovirus: possible implications for treatment, screening, and vaccine developmentFlow diagram of screening process. *Reasons for exclusion: population size < 100; prevalence or seroprevalence based on a non-IgM or -IgG diagnostic method (eg, reverse transcriptase polymerase chain reaction); or data out of scope of review (incidence, infection rate, mortality, or long-term sequelae). CMV, cytomegalovirus; IgG, immunoglobulin G; IgM, immunoglobulin M; SLR, systematic literature reviewBack to article page