Omicron variant of SARS-CoV-2 is less infectious in dogs and cats Coronavirus Disease COVID Omicron Cats Dogs Feline Canine biorxivpreprint Loeffler_News
By Bhavana KunkalikarFeb 13 2023Reviewed by Benedette Cuffari, M.Sc. In a recent study posted to the bioRxiv* preprint server, researchers at the Friedrich-Loeffler-Institute, Germany, assess the susceptibility of cats and dogs to the severe acute respiratory syndrome coronavirus 2 Omicron variant.
About the study In the present study, researchers use serological methods to evaluate dogs and cats residing in households with human SARS-CoV-2-infected patients. All sera were evaluated using a species-independent surrogate virus neutralization test . The sVNT permitted the identification of antibodies elicited against the SARS-CoV-2 wild-type strain and several SARS-CoV-2 variants of concern , such as Delta, but excluding Omicron.
In each instance, the positive reaction was registered against the original RBD. When the Omicron RBD was tested, each dog sample tested negative. All positive sVNT test results were verified by the indirect immunofluorescence assay , as all sVNT-positive samples also yielded a positive ilFA result.
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