We also examined whether COVID-19 impacted measures from a DNA methylation-based mitotic clock [“epiTOC” (Yang et al., 2016)] and quantification of the pace of biological aging [“DunedinPoAm” (Belsky et al., 2015, 2020)] and observed no significant differences pre- vs. post-COVID-19 in these measures (Supplementary Figure S5). The gene discussed is CLOCK; the disease is COVID-19.