Your health, your choice. The only thing you can do is take care yourself. It's hard to know the status of the escort. But you could do as much as you can to protect yourself.
Before I hire an escort, I always do some search.
1) Check if the escort has porn background, has done bareback, gang bang or uses drugs.
2) Check if the escort has criminal records or bad customer reviews.
3) Make sure I am healthy and protected. No open sore in the mouth, no wound or scratch on my skin.
When I meet the escort,
1) I never bottom bareback for the escort. Only condom sex if I bottom.
2) no ass to mouth action to avoid hepatitis.
3) no cum eating.
If you follow what I said, you are pretty much very safe. Just my 2 cents.