唉，这种人命关天的大事，怎么可能胡来。NIH有明确的临床分型指南，为临床医生提供诊断标准。

https://www.covid19treatmentguidelines.nih.gov/overview/clinical-spectrum/

In general, adults with SARS-CoV-2 infection can be grouped into the following severity of illness categories; however, the criteria for each category may overlap or vary across clinical guidelines and clinical trials, and a patient’s clinical status may change over time.

• Asymptomatic or Presymptomatic Infection: Individuals who test positive for SARS-CoV-2 using a virologic test (i.e., a nucleic acid amplification test [NAAT] or an antigen test) but who have no symptoms that are consistent with COVID-19. 
• Mild Illness: Individuals who have any of the various signs and symptoms of COVID-19 (e.g., fever, cough, sore throat, malaise, headache, muscle pain, nausea, vomiting, diarrhea, loss of taste and smell) but who do not have shortness of breath, dyspnea, or abnormal chest imaging. 
• Moderate Illness: Individuals who show evidence of lower respiratory disease during clinical assessment or imaging and who have an oxygen saturation (SpO2) ≥94% on room air at sea level. 
• Severe Illness: Individuals who have SpO2 <94% on room air at sea level, a ratio of arterial partial pressure of oxygen to fraction of inspired oxygen (PaO2/FiO2) <300 mm Hg, a respiratory rate >30 breaths/min, or lung infiltrates >50%. 
• Critical Illness: Individuals who have respiratory failure, septic shock, and/or multiple organ dysfunction.

所有跟帖： 

• 医院肯定有重症的标准。只是统计数据上一般按住院，ICU, 上呼吸机，死亡来区分的多。住院就可能包括其他疾病。 -阿明.- ♀ (0 bytes) () 01/01/2022 postreply 16:37:20