COVID-19: China's Experience with Signs, Symptoms, & Severity

The World Health Organization (WHO)-China Joint Mission on Coronavirus Disease 2019 (COVID-19) convened from February 16-24, 2020 to compile data on the signs, symptoms, progression, and severity of the coronavirus disease 2019 (COVID-19) in an effort to inform and prepare response to spread outside China.The world has shifted irreversibly since that report but the course of the infection has largely followed early trends, eg: Median time from onset to clinical recovery for mild cases is ~2 wks; 3-6 weeks for severe or critical disease. Time from onset to the development of severe disease, including hypoxia, is 1 week. Among patients who have died, the time from symptom onset to outcome ranges from 2-8 weeks.Details on mild, moderate, and severe cases and more from the final report in the slides below.