Once you have had an std, your body will be naturally immune to it, and you will not get the same std again, true or false?

With some STDs like chlamydia, gonorrhea, syphilis, and trichomoniasis, they can be treated and cured. But you can become reinfected with these diseases if you have unprotected sex with someone who is infected with them. It’s not unusual for the treated partner to be reinfected by an untreated partner.

Where are the following