Less well publicized is the significant risk to our efforts to fight the H.I.V. epidemic in this country. The proposed funding cuts include $800 billion from the Medicaid program, which makes health care accessible to more than 40 percent of patients with H.I.V. in the United States; millions of dollars from the Ryan White H.I.V./AIDS Program; reductions across Centers for Disease Control and Prevention public health programs; and almost a fifth of the research budget from the National Institutes of Health.