Improvement of Severe COVID-19 in an Elderly Man by Sequential Use of Antiviral Drugs

Figure 2

Clinical course of treatment. The viral load peaked on the 19^th day during the administration of remdesivir and then started to decrease. Red and blue circles indicate positive and negative results on PCR assay, respectively. LR, lopinavir/ritonavir; CLQ, chloroquine; ECMO, extracorporeal membrane oxygenation; PCR, polymerase chain reaction.