My wife works in a hospital, and one day she asked me to look at the back of her throat. I could see a few white spots back there, and she said it hurt when I touched her neck during the exam. She said if it was truly a strep throat infection, she might have to take off a few days of work so she didn't spread it to the patients.
Her supervisor was a nurse practitioner, and she advised my wife to take antibiotics and treat the other strep symptoms with over-the-counter medications. My wife said she could have worked if she agreed to wear a surgical mask and avoid certain patients, but she decided she didn't want to take that risk.