PRISON FELLOWSHIP: solitary confienement

The Gospel tells us the good news:  that Christ died on the cross so that each of us can enter into fellowship with Him (1 Corinthians 1:9).

We are also called to have fellowship with one another (1 John 1:7).  Prison Fellowship Ministries, as indicated by our title, seeks to cultivate fellowship inside prison walls.  

Is it lawful or humane for the state to dole out additional punishment to prisoners for a medical condition?

The New York Times published an article about an inmate, Albert Knox, who tested positive for HIV his first week in prison.