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Article

SARS-CoV-2 Delta Variant (AY.3) in the Feces of a Domestic Cat

1
Department of Clinical Sciences and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, 3900 Delancey Street, Philadelphia, PA 19104, USA
2
Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, 3610 Hamilton Walk, Philadelphia, PA 19104, USA
3
Department of Medicine, Division of Infectious Diseases, Perelman School of Medicine, University of Pennsylvania, 3400 Civic Center Boulevard, Philadelphia, PA 19104, USA
4
Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
5
Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, 3900 Delancey Street, Philadelphia, PA 19104, USA
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Julia A. Beatty
Viruses 2022, 14(2), 421; https://doi.org/10.3390/v14020421
Received: 26 January 2022 / Revised: 14 February 2022 / Accepted: 16 February 2022 / Published: 17 February 2022
(This article belongs to the Section SARS-CoV-2 and COVID-19)
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections have spilled over from humans to companion and wild animals since the inception of the global COVID-19 pandemic. However, whole genome sequencing data of the viral genomes that infect non-human animal species have been scant. Here, we detected and sequenced a SARS-CoV-2 delta variant (AY.3) in fecal samples from an 11-year-old domestic house cat previously exposed to an owner who tested positive for SARS-CoV-2. Molecular testing of two fecal samples collected 7 days apart yielded relatively high levels of viral RNA. Sequencing of the feline-derived viral genomes showed the two to be identical, and differing by between 4 and 14 single nucleotide polymorphisms in pairwise comparisons to human-derived lineage AY.3 sequences collected in the same geographic area and time period. However, several mutations unique to the feline samples reveal their divergence from this cohort on phylogenetic analysis. These results demonstrate continued spillover infections of emerging SARS-CoV-2 variants that threaten human and animal health, as well as highlight the importance of collecting fecal samples when testing for SARS-CoV-2 in animals. To the authors’ knowledge, this is the first published case of a SARS-CoV-2 delta variant in a domestic cat in the United States. View Full-Text
Keywords: COVID-19; SARS-CoV-2; coronavirus; delta variant; AY.3; cats; feline; whole genome sequencing; feces; One Health COVID-19; SARS-CoV-2; coronavirus; delta variant; AY.3; cats; feline; whole genome sequencing; feces; One Health
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MDPI and ACS Style

Lenz, O.C.; Marques, A.D.; Kelly, B.J.; Rodino, K.G.; Cole, S.D.; Perera, R.A.P.M.; Weiss, S.R.; Bushman, F.D.; Lennon, E.M. SARS-CoV-2 Delta Variant (AY.3) in the Feces of a Domestic Cat. Viruses 2022, 14, 421. https://doi.org/10.3390/v14020421

AMA Style

Lenz OC, Marques AD, Kelly BJ, Rodino KG, Cole SD, Perera RAPM, Weiss SR, Bushman FD, Lennon EM. SARS-CoV-2 Delta Variant (AY.3) in the Feces of a Domestic Cat. Viruses. 2022; 14(2):421. https://doi.org/10.3390/v14020421

Chicago/Turabian Style

Lenz, Olivia C., Andrew D. Marques, Brendan J. Kelly, Kyle G. Rodino, Stephen D. Cole, Ranawaka A.P.M. Perera, Susan R. Weiss, Frederic D. Bushman, and Elizabeth M. Lennon. 2022. "SARS-CoV-2 Delta Variant (AY.3) in the Feces of a Domestic Cat" Viruses 14, no. 2: 421. https://doi.org/10.3390/v14020421

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