Abstract
In December 2019 unexplained pneumonia cases were initially reported in Wuhan, China. The pathogen, a novel coronavirus named severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2), was isolated from lower respiratory tract samples of infected patients and the resultant disease was termed as COVID‐19 (Coronavirus Disease 2019)1. By Feb 15, COVID‐19 has rapidly spread throughout China and across the world, until a pandemic condition was announced by March 112.