Clinical efficacy of tocilizumab treatment in severe and critical COVID-19 patients

Figure 1 Improvement after tocilizumab treatment (computed tomography of the lung shows reduced lung inflammation).

Figure 2 Chest radiography in a patient who subsequently died after tocilizumab treatment (bedside chest radiograph show increased inflammation and significantly increased exudation).

Figure 3 Oxygen therapy and curative effect in 19 patients with Coronavirus Disease 2019.

Figure 4 Trend in each test index between the effective group and ineffective group.