"With infections expected to be skyrocketing we need: clear communication about self-care to prevent panic-driven trips to the hospitals," Bhramar Mukherjee, professor of epidemiology at the University of Michigan, wrote on Twitter.
"Scale up hospital capacity and optimise care to those who really need it," she said.
New Delhi's premier All India Institute of Medical Sciences cancelled a winter holiday for staff between Jan. 5 and 10. Many doctors and nurses have contracted the virus in recent days.
"Ensure maximum preparedness against a possible surge in cases," the health ministry told state authorities on Tuesday.
Authorities, especially in Delhi, have repeatedly said only those who actually need round-the-clock monitoring should go to hospital while others should recover at home.