The World Health Organization's director-general, Dr. Tedros Adhanom Ghebreyesus, said on Monday that as some countries have exceeded their capacities to care for patients with mild symptoms and they should focus on more severe cases and prioritize those with underlying conditions. He said mild cases could be isolated at home and gave directions on safety procedures on how to take care of patients at home, including sleeping in a different bedroom, using a different bathroom, and wearing protective masks.