We assessed susceptibility of dogs to SARS-COV-2 Delta and Omicron variants by experimentally inoculating beagle dogs. Moreover, we investigated transmissibility of the variants from infected to naive dogs. The dogs were susceptible to infection without clinical signs and transmitted both strains to other dogs through direct contact.
Keywords: COVID-19; Delta; Omicron; SARS-CoV-2; South Korea; coronavirus disease; disease transmission; dogs; infections; respiratory infections; severe acute respiratory syndrome coronavirus-2; variants; viruses.