When the administrator called the hospital and asked how many active cases of Covid-19 there were in the county and the hospital said zero, the administrator knew the girl was in error based upon the faulty test given.
Has the hospital performed any Positive tests for COVID-19?
No, all tests performed by this hospital have come back Negative.
Can the hospital assert there is not a single case of COVID-19 in the county?
Absolutely not! How could they possibly know that? Certainly there could be cases of which the hospital is unaware.