Amid a worsening Covid-19 outbreak in Dubbo, it is warned the efforts to contain the virus are being hampered by a shortage of doctors.

The outbreak is the first to happen in a remote area with a high number of unvaccinated First Nations People, with elders calling for urgent additional vaccine and mask supplies and medical staff.

The Dharriwaa Elders Group in Walgett say the impacts could be devastating on their community.

NSW Health says they are rescheduling mobile community vaccination clinics to the area after they were put on hold last week.