CRP and COVID-19: There were statistically significant differences between the first and the second COVID-19 waves regarding the presence of features suggestive of a COVID-19 infection, such as fever, severity of initial presentation, presence of suspicious CT chest findings, and positive CRP (p < 0.001, p < 0.001, p = 0.011, p < 0.001, and p < 0.037 respectively).