Can syphilis serum be positive for health certificate?

First of all, it is theoretically not allowed to apply for a health certificate. Syphilis is an infectious disease, which is highly contagious and harmful. If you are seropositive for syphilis, then you will not get a health certificate. Generally speaking, where you have a health certificate, it is difficult to consider whether you are serofixed or syphilis in the early stage. I think it is almost impossible.