KRT18 and infection: Infection of K18-hACE2 mice with original ancestral isolates of SARS-CoV-2 is well described and results in weight loss and mortality by ≈ 5 days post infection (dpi) (Amarilla et al., 2021; Kumari et al., 2021; Zheng et al., 2021; Carossino et al., 2022; Dumenil et al., 2022; Yu et al., 2022).