Finally, it is noteworthy that CRP levels should be carefully monitored during the entire hospital stay, as it has been observed that its evaluation after 7 days of hospitalization could represent a reliable marker of the treatment response in moderate and severe COVID-19 patients [14,93], highlighting a possible lack of corticosteroid response or, eventually, the development of secondary infections [90,94,95]. This evidence concerns the gene CRP and COVID-19.