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The time course of the epidemic of acquired immunodeficiency syndrome (AIDS) as it has occurred in the US hemophilia population is examined using surveillance data collected by the Centers for Disease Control (CDC). These data indicate that the epidemic course in hemophiliacs is distinguishable from that in the homosexual/bisexual and intravenous drug-using populations in at least one respect--the epidemic in the hemophilia population is characterized by a lack of consistent increase in the number of new AIDS cases in successive time intervals. This difference is interpreted as being attributable to the mechanisms by which AIDS virus is spread among hemophiliacs. In addition, the short survival following diagnosis of AIDS in hemophiliacs and the magnitude of yearly incidence rates for this group in 1984 and 1985 show the hemophilia population to have been severely affected by the epidemic.
McGrady et al. (Wed,) studied this question.