Employer not Informing Employees when Someone has Covid

[falcon53192]

I had a question. My employer at an outpatient surgery center discovered an employee that had covid. There was not contact tracing involved after she was sent home (she's been sick and out for 2 weeks now). I have inquired and management says they can't say anything because of HIPAA, but shouldn't my employer inform us that we've been exposed to covid??? There hasn't been one word. Is this legal? Shouldn't they HAVE to tell us?? Not one word that I've been working next to someone with covid. The only reason I know she has covid is because I know her friends outside of work and they told me. Am I crazy or is it immoral at the very least not to inform us. I think they are keeping is hushed because if they let everyone know they would have to shut down and test everyone.