CRP and COVID-19: At enrolment (day one), participant’s acute COVID-19 symptoms and biochemistry including C-reactive protein (CRP) (Beckman Coulter® CRP Latex, USA), D-dimer (Diazyme D-Dimer Assay, USA), lactate dehydrogenase (LDH) (Beckman Coulter® LD, USA), ferritin (Access 2 Beckman Coulter®, USA), and complete blood count (CBC) (XN 1000, Sysmex, United Kingdom) were recorded at the outpatient’s clinic and treatment was prescribed by the physician as per the randomization.