A multivariate Cox proportional hazard model was used to analyse whether age, hypoproteinaemia, the time from symptom onset to treatment, the time to fever resolution, the presence of symptoms, treatment with corticosteroids, CRP levels and CK levels affected whether the COVID-19 patients became negative for viral nucleic acid in the treatment period (0 = no, 1 = became negative). This evidence concerns the gene CRP and COVID-19.