COVID-19 detection kits have been developed and the test results can be generated within 6 h, which is helpful for early diagnosis, treatment and judgment of the treatment effect. Although the number of patients with COVID-19 infections is large in Wuhan, the fatality rate is much lower (3.37%, by February 19, 2020) compared with that of SARS (11%, 2003). By February 19, 2020, 4895 people have been recovered after treatments and most of them are mild cases.