Not according to WHO. They state that
"[the] whole virus has never been found in sweat.". Without the entire virus appearing in sweat, you can't contract it from it.
While you can get it via Breast Milk and Semen, I was assuming that most people here worrying about quarantine were not planning to have sex or drink the breast milk of those that were wanting quarantined. I was also assuming they didn't plan to share needles, though I'd note that sharing needles is a blood transfer, so comes under being a contact with their blood entering your body.
Finally, I don't think that anyone is planning to eat uncooked meat from infected bats or primates, so we don't need to worry about that either. That leaves the big three. Blood, faeces, and vomit, and I doubt many people would actually touch those in public places, let alone then sticking their finger in an eye, nose, or mouth before washing it.
So short of having an extremely sick patient actually cough directly in your mouth, there isn't a risk, and if that happened, and you caught it, you'd be the first person on the planet to do so via that method.