Health investigators are reporting that a former employee of a San Antonio nursing home warned her supervisors about a situation that could lead to an outbreak of coronavirus at the facility. The staff occupational therapist at Southeast Nursing and Rehabilitation Center told management about a fellow therapist who stayed on the job despite possible exposure to the virus. She resigned on March 20th, and health officials confirmed a localized outbreak at the facility on March 31st. San Antonio Metropolitan Health officials say ten residents have died and more than 70 residents and staff have tested positive for the virus.