Full name: coronavirus disease 20 19. Corona means: halo; Corona; Krone; Corolla; The meaning of solar halo virus: virus; Viral virus; Viral diseases; Viral diseases. The meaning of disease: disease; Disease; Disadvantages; Malignant disease; Chronic diseases.

Naming process of COVID-19: On February/KOOC-0//KOOC-0/day, 2020, the Director-General of the World Health Organization, Tedros Adhanom Ghebreyesus, announced in Geneva that novel coronavirus was named "Coronavirus Pneumonia-/KOOC-0/9". On February 2 1 2020, the National Health and Wellness Committee issued a notice on the revision of the English name of novel coronavirus, and decided to change the English name of "novel coronavirus" to "Coronavirus Pneumonia-19", which is consistent with the name of the World Health Organization, and the Chinese name remains unchanged.

Novel coronavirus infection is a special coronavirus, which can cause fever, headache, sore throat, cough, dyspnea and even nausea and vomiting. Lung CT will show interstitial changes, white blood cells and lymphocytes in blood are decreased, and C-reactive protein and procalcitonin are generally normal.