HIV treatments prevent replication of cells infected by HIV such that the number of immune cells infected by HIV can be undetectable. The problem is there are l

HIV treatments prevent replication of cells infected by HIV such that the number of immune cells infected by HIV can be undetectable. The problem is there are latent reservoirs of HIV DNA / cells that may reactivate later or hide in areas of the body without immune protection (this is a lot easier for immune system cells with privileged access!). See https://www.nature.com/articles/nrmicro.2015.5 https://www.nature.com/articles/nrmicro.2015.5 for an older but good discussion on this.