The present pandemic conditions have created havoc in the minds of people. It is an obvious reaction on the part of the medical staff who are directly coming in contact with Covid patients. The only option is to counsel them properly. In this situation, they are called frontline soldiers. If required, provide some motivational allowance and assure free treatment or some insurance along with proper PPE kits to ensure their safety.
If they still remain reluctant to work, ask them to provide in writing what they have expressed verbally. Also, inform the District Magistrate (DM) and the Indian Medical Association (IMA) in writing. Inform them that they either have to work in their allotted place in rotation or they are free to quit the job because the hospital will not pay any idle wages. In the worst case, management will be forced to terminate their services. This situation has to be dealt with in a strong manner, or otherwise, other staff may fall to the same demands.