Regarding CoVs, including both α- and β-CoVs, remarkable upregulations of the AhR were recently revealed during hosts’ responses to infections with mouse hepatitis virus (MHV), Middle East respiratory syndrome coronavirus (MERS-CoV), human coronaviruses (HCoV229E, SARS-CoV-1, and SARS-CoV-2), canine coronavirus (CCoV), porcine epidemic diarrhea virus (PEDV), and feline coronavirus (FCoV) [28,29,30,31,32,33,34,35]. Here, AHR is linked to infection.