This follows mass testing of staff of the hospital after an upsurge of cases in the Savelugu Municipality.
Sources say there are still some samples at the laboratory yet to be tested.
Ghana has so far recorded a total of 80,253 cases of Covid-19 with 598 new cases recorded.
73,018 people have recovered and discharged with a total of 577 deaths. Meanwhile, the current active cases have dropped slightly to 6,658.