Got infected with syphilis on day 1 -> had unprotected vaginal  sex with another person on day 5 (4 days later). How much sex partner from day 5 at risk?

Thanks   

It would help to know more about your syphilis. Is the source of your infection certain? Did you develop a chancre or other symptoms that led to your diagnosis? When, i.e. how long after the exposure and after your subsequent vaginal sex event? What stage of syphilis did you have? How was your infection diagnosed -- blood test? Darkfield exam of chancre? What treatment were you given?

Pending those answers:  In theory, syphilis is not transmissible until symptoms start -- usually meaning a syphilitic sore (chancre). However, it might sometimes be transmissible before then. Therefore the standard practice per public health STI clinics and most or all syphilis experts is that such persons -- including your vaginal sex partner -- should be treated to prevent development of syphilis. In other words, your vaginal sex partner should be considered to be at risk and must be treated with benzathine penicillin G (i.e. long acting penicillin by injection). That's also how you should have been treated.

Perhaps I will have more to say when you fill in the details. I hope these comments are helpful in the meantime.

HHH, MD

sorry for missing all information, I'm too anxious and in a bad state.

No positive diagnose until today.

The situation was as follows:

I had unprotected oral (around 2 Min) with a CSW in Asia (female).

5 Days after I had unprotected vaginal encounter with a female.

Did Urin PCR 14 days after for other STD, came out negative.

Can you give syphilis risk estimation for me and the female encounter after 5 days?

You probably have easy access to superb STD advice and clinical services. Australia's government funded sexual health centres are the world's very best network of STD/HIV clinical and prevention services. Contact your nearest SHC for world-class advice about future testing (e.g. maybe blood tests for HIV and syphilis in a few weeks). If you are in the Melbourne or Sydney areas, you have access to the best of the best. In the meantime, your vaginal sex partner a few days later is at little or no risk of any STD from you.

Thank you for your estimation.

You said in your previous reply that me risk is probably very low but still saying I should contact clinic for future blood tests (hiv/syph). I’m a bit confused.

Is my chance high that both will come out negative after 6 weeks? 

That completes the two follow-up comments and replies included with each question and so ends this thread. I hope the discussion has been helpful. Best wishes and stay safe.