Pneumonia of Unknown Cause

(The Fight Against COVID-19)

Updated:2020-03-13 |

Pneumonia of Unknown Cause

Pneumonia of unknown cause is a medical term coined by the Chinese health authorities for timely detection and treatment of SARS, human avian influenza and other infectious pneumonia. Patients of pneumonia of unknown cause have the following clinical signs and symptoms: fever (axillary temperature is 38 degrees centigrade or higher), imaging features of pneumonia, decreasing or normal leukocyte count or decreasing lymphocyte count in the early stage of the disease, and no significant improvement or even progressive aggravation after standard anti-microbial treatment for three to five days.

In December 2019, more than one case of viral pneumonia of unknown cause was reported in Wuhan. On December 31, Wuhan Municipal Health Commission announced that the clinical pictures of recent cases of "pneumonia of unknown cause" were mainly fever, and a small number of patients had breathing difficulties and infiltration in both lungs. The earliest onset of the disease was on December 8, 2019. On January 7, 2020, the pathogen of this pneumonia virus was identified as "novel coronavirus."

After the outbreak of the epidemic, Wuhan quickly took strict prevention and control measures, including case finding, isolation, admission to designated hospitals, medical observation of close contacts, and emergency monitoring. The principle of "early detection, early reporting, early isolation and early treatment" was also resolutely implemented.