KRT18 and Kallmann syndrome: A well described neurological manifestation of COVID-19 is anosmia, with infection of the olfactory epithelium implicated in humans (Khurana and Singh, 2022; Ziuzia-Januszewska and Januszewski, 2022), hamsters (De Melo et al., 2023) and in K18-hACE2 mice (Zheng et al., 2021).