ArticleScientific reports2023
Molecular detection and characterization of SARS-CoV-2 in cats and dogs of positive owners during the first COVID-19 wave in Brazil.
Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 10 citations in OpenAlex.
- First report of SARS-CoV-2 co-infection with chronic dermatophytosis in a lion (Panthera leo) ex situ at Colombia.BMC veterinary research · 2026Article
- Longitudinal study on SARS-CoV-2 antibody responses in companion animals, Chile.The veterinary quarterly · 2025Article
- Molecular Evidence of SARS-CoV-2 Virus in Dogs and Cats from Grenada.Veterinary sciences · 2025Article
- Evidence of SARS-CoV-2 Exposure in Cats and Dogs From Households in Romania and Long-Term Specific Seroconversion in Cats.Veterinary medicine and science · 2025Article
- Repeated detection of SARS-CoV-2 in pet dogs in Ibadan, Oyo State, Nigeria: a cause for vigilance.BMC veterinary research · 2025Article
- Higher Frequency of SARS-CoV-2 RNA Shedding by Cats than Dogs in Households with Owners Recently Diagnosed with COVID-19.Viruses · 2024Article
- SARS-CoV-2 surveillance and detection in wild, captive, and domesticated animals in Nebraska: 2021-2023.Frontiers in veterinary science · 2024Article
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Authors and funding
23 authors at 10 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Despite previous reports of SARS-CoV-2 infection in dogs and cats worldwide, the type of swab sample used for its detection through RT-qPCR needs to be better compared and described. Accordingly, as part of a multicenter study in Brazil, the aim of the present study was to assess which rectal or oropharyngeal swabs would be more appropriate for detecting SARS-CoV-2 in cats and dogs, through viral load comparison. Pets of owners diagnosed with COVID-19 in the last 7 days were eligible. A total of 148 animals from four of the five Brazilian geographical regions were analyzed, among which 10/48 cats (20.83%) and 11/100 dogs (11.00%) were positive. The results suggested that oropharyngeal swabs should be considered for SARS-CoV-2 detection, particularly in cats, due to the higher cDNA viral load. Also, the genomic results showed similarities between SARS-CoV-2 animal variants and human variants that were circulating at the time of sampling, thus corroborating the existence of zooanthroponotic transmission. In conclusion, the present study highlighted the importance of SARS-CoV-2 monitoring among cats and dogs, as virus modification may indicate the possibility of mutations in animals and spillover back to owners. Thus, positive individuals should always self-isolate from their pets during COVID-19, to prevent trans-species transmission and mutation.
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