Notably, whereas IL12RB1, NRP1 and NRP2 were only moderately increased as a function of viral load, CNTN1 expression was significantly correlated with viral load in these COVID-19 patients (Fig. 5g and Supplementary Fig. 5), an association that was more prominent in older patients (Supplementary Fig. 5). The gene discussed is IL12RB1; the disease is COVID-19.