＜正＞COVID-19 is a novel coronavirus that is highly infectious, especially in crowded places and relatively confined spaces, and has a long incubation period and unclear symptoms, making it difficult for some patients to identify the disease. 

【文章頁數(shù)】：6 頁

【文章目錄】：
Necessity of developing guidelines on coronavirus prevention and control in office building
Main content of the association standard
Playing a role in the fight against COVID-19
Outlook



本文編號：3714839