Small Number of COVID Patients Develop Severe Psychotic Symptoms The New York Times - December 28, 2020 Jonathan Alpert, M.D., Ph.D., and Vilma Gabbay, M.D., discuss their published case report on two patients who developed psychosis for the first time after recovering from COVID-19. Dr. Alpert is chair of psychiatry and behavioral sciences at Einstein and Montefiore and Dr. Gabbay is co-director of the Psychiatry Research Institute at Montefiore Einstein.