However, despite multiple recent studies showing that cCP levels correlate better with the severity of COVID-19 than a host of other biomarkers—including IL-6 and CRP—cCP is seldom used to assess and follow COVID-19 patients, likely due to unfamiliarity and, until recently, the unavailability of automated, quantitative practical assays [7,8,9,23,24,25]. The gene discussed is IL6; the disease is COVID-19.