We observed no statistically significant changes in the BALF of COVID-19 patients compared to BALF samples of healthy controls in the expression of HERV-K (HML-2), HERV-K (HML-4), HERV-K (HML-6), HERV-9, and HERV-E (Fig. 1). The gene discussed is CLEC10A; the disease is COVID-19.