I am the power of attourney of care for a 93 year old gentleman who had contracted syphilis way back during his university years. He was treated extensively back then with penicillin for 7 months, he said. In the last year, he has been noticing a change in his memory and is convinced that the syphilis is causing that and would like treatment for it. A couple of years ago his old doctor had given him 3 IM injections of penicillin, but has since retired. HIs new doctor will not treat him again. In your opinion, could it be the syphilis that is causing the memory changes? His latest lab results say Syphilis screen: Reactive, Syphilis RPR screen: non-reactive, Syphilis TP.PA : reactive