Michaela Pulova was last seen with her two children Amelya Pulova and David Puloon on Tuesday, November 24. They were last seen at around 7.30pm.
The public have been praised for rushing to help the police officer.
An outbreak of coronavirus has been confirmed at a DPD hub in Oldbury. 19 workers have tested positive since the end of July. Sandwell has had one of the highest rates of infection in the country over the past month.