jinkytol du'e lujvo

t₁=j₁ is an immune-system deficiency of j₂.

From jinku, toldu'e. t2, t3, j3, j4 based on relative uselessness (you could use tanru to get what type-of immune deficiency you're referring at).

In notes:

remjinkytoldu'evidru: v₁=jt₁=r₁ is HIV [Human immunodeficiency virus] of jt₂.
selcpajinkytoldu'eterbi'a: t₁=jt₁=s₁ is AIDS [Acquired immune deficiency syndrome] with symptoms t₂, of/among t₃=jt₂=s₂ acquired from source s₃.
smanyjinkytoldu'evidru: v₁=jt₁=s₁ is SIV [Simian immunodeficiency virus] of jt₂.
re'ajinkytoldu'evir: v₁=jt₁=r₁ is HIV [Human immunodeficiency virus] of jt₂.
smanyjinkytoldu'evir: v1=jt1=r1 is SIV [simian immunodeficiency virus] of jt2.