Like other infectious diseases, the susceptible groups of the new coronavirus are mainly the elderly, people with chronic diseases, people with low immunity, or people taking hormones or immunosuppressive drugs, and pregnant women and infants are also susceptible. Since the resistance of the above groups is much lower than that of normal adults, they become susceptible to infectious disease outbreaks and lack resistance to various pathogenic microorganisms. Therefore, susceptible people should pay more attention to the protection, can be injected to promote the resistance of the drug, such as thymus peptide, gammaglobulin or interferon can be.