Careful, syphillis?

I know a guy. Say he no longer works for the railroad. For a long time he has loved his sex, just abut anything and anyone he could stick up his ass. He is good at sucking and kissing, too. Since Covid, he will sit around naked in his truck at rest stops, dildo in his ass, ready to take on anyone his conduct doesn't scare off. Word has it, supposedly from him and he is upset about it, he has syphillis. The night I heard about this, some videos came up on the computer, a reasonable beefy really-good looking blond hooting cum into the mouths of two gorgeous twins. A video worth seeing. Cum everywhere. Got me to thinking, one-on-one sex, and sex with others, two or more, or wanton rambling with who knows in the night, all this cum could be diseased or not, it's a wonder we all are still alive. Look how AIDS killed 101,000 quickly. Wiki seems to say syphillis caught early, sores in throat, mouth, ass, open sore/chancre on the dick or tongue, can be cured, sometimes with a single shot of penicillin. That's why it's key to get a health checkup as soon as you notice any symptoms of syphilis.