This long weekend I had mind blowing sex with a friend I ran into at a gay bar. He mentioned to me that he was infected with syphilis in March 2018 with titre of 1:32 and treated since. His last test in November 2018 was 1:8 which was 4 fold decline in titres and the doctor declared him cured. His recent test as of last week after November 2018 test showed titre to be 1:16 which is 2 fold increase. The norm is that a person is syphilis positive if there is 4 fold titre increase. I already had my test fir syphilis negative as of beginning of February this year.
I am really concerned about opportunistic infections and I have booked my doctor's appointment for first week of Mach. My question is how did a 4 fold decline increase 2 fold? Does this mean he is still infected to pass syphilis to me? Of course I am not expecting medical responses unless there is a medical health professional on this forum but out of your experience and research please help me calm down. My research says a 4 fold increase from last titre is infection or reinfection.
