Table 1.

Classification of patients with COVID-19 according to symptom severity

Classification	Classification criteria
Asymptomatic	Asymptomatic or body temperature < 37.5 °C
Mild	Body temperature ≥ 37.5 °C but O2 supply not required
Moderate	O2 supply via nasal or venturi mask required
Severe	High-flow O2 supply or mechanical ventilation required