Fig. 4From: The RdRp genotyping of SARS-CoV-2 isolated from patients with different clinical spectrum of COVID-19Spearman’s correlation coefficient between the studied variables: number of mutations, COVID-19 severity and age. Legend: COVID-19 severity was identified on a 5-point scale of clinical spectrum (5th degree of COVID-19 was not present in the studied patients), p < 0.05 was considered statistically significant, r - Spearman’s correlation coefficient, the arrows indicate the correlation between the variablesBack to article page