A method of developing an immune response to HIV using a composition of
inactivated HIV. Inactivation is through psoralen and ultraviolet
radiation. The composition is rendered more effective by the removal of
structural features of HIV that interfere with immune response. In
particular, sialic acid is removed to enhance immune recognition of the
composition and to impair Complement Factor H binding. CD55 and CD59 are
also removed to prevent the binding of Complement Factor H.A method of
developing an immune response to HIV using a composition of inactivated
HIV. Inactivation is through psoralen and ultraviolet radiation. The
composition is rendered more effective by the removal of structural
features of HIV that interfere with immune response. In particular,
sialic acid is removed to enhance immune recognition of the composition
and to impair Complement Factor H binding. CD55 and CD59 are also removed
to prevent the binding of Complement factor H.