Syphilis cases hit highest peak since the 1950s, CDC report reveals

Whatever you do, Syphilis incidence follows a sinusoidal path, with waves up and down.
Is it advisable, safe, beneficial, for those involved in any kind of risk behavior, having a benzil penicillin injection, let's say, every 2 months?
No penicillin resistant strains of T pallidum were ever detected.
btw: Vaccines for Meningitis offer some protection against gonorrhea, the clap, both bacteria have common roots.