Literature detail

First Detection of SARS-CoV-2 B.1.1.7 Variant of Concern in an Asymptomatic Dog in Spain.

Sandra Barroso-Arévalo1,2 Belén Rivera1,2 Lucas Domínguez1,2 José M Sánchez-Vizcaíno1,2
Affiliations 2 institutions
  1. VISAVET Health Surveillance Center, Animal Health Department, Complutense University of Madrid, 28040 Madrid, Spain.
  2. Department of Animal Health, Faculty of Veterinary, Complutense University of Madrid, 28040 Madrid, Spain.
PMID 34372585 2021 Viruses eng epublish
PubMed DOI Browse context

Article

Publication summary

Natural SARS-CoV-2 infection in pets has been widely documented during the last year. Although the majority of reports suggested that dogs' susceptibility to the infection is low, little is known about viral pathogenicity and transmissibility in the case of variants of concern, such as B.1.1.7 in this species. Here, as part of a large-scale study on SARS-CoV-2 prevalence in pets in Spain, we have detected the B.1.1.7 variant of concern (VOC) in a dog whose owners were infected with SARS-CoV-2. The animal did not present any symptoms, but viral loads were high in the nasal and rectal swabs. In addition, viral isolation was possible from both swabs, demonstrating that the dog was shedding infectious virus. Seroconversion occurred 23 days after the first sampling. This study documents the first detection of B.1.1.7 VOC in a dog in Spain and emphasizes the importance of performing active surveillance and genomic investigation on infected animals.

B.1.1.7 dog pet reverse zoonosis SARS-CoV-2 variant of concern Animals COVID-19 Dog Diseases Dogs Genome, Viral Male Mutation SARS-CoV-2 Sequence Analysis, DNA Spain Spike Glycoprotein, Coronavirus Viral Zoonoses

Structured evidence records

Evidence records

4 total
1 records
Extraction confidence 0.75
Key finding

Genomic sequencing confirmed the presence of the SARS-CoV-2 B.1.1.7 variant of concern in an asymptomatic dog in Spain.

Virus
Location
Not specified
Supporting text

We have detected the B.1.1.7 variant of concern (VOC) in a dog whose owners were infected with SARS-CoV-2... emphasizes the importance of performing active surveillance and genomic investigation on infected animals.

Genes or proteins
Spike Glycoprotein, Coronavirus
Analysis methods
Sequence Analysis, DNA
1 records
Extraction confidence 0.88
Key finding

A dog infected with the SARS-CoV-2 B.1.1.7 variant in Spain showed seroconversion 23 days after initial sampling.

Virus
Location
Not specified
Supporting text

Seroconversion occurred 23 days after the first sampling.

Sample type
serum
1 records
Extraction confidence 0.95
Key finding

Human-to-dog spillback of SARS-CoV-2 B.1.1.7 variant was confirmed, with infectious virus detected and isolation achieved from the dog’s swabs in Spain.

Virus
Location
Supporting text

We have detected the B.1.1.7 variant of concern (VOC) in a dog whose owners were infected with SARS-CoV-2. Viral isolation was possible from both swabs, demonstrating that the dog was shedding infectious virus.

Method
viral isolation; genomic investigation; serological testing
Study design
field surveillance
Transmission direction
human-to-animal
Geographic raw
Spain
Country inferred
Spain
1 records
Extraction confidence 0.90
Key finding

A surveillance study in Spain detected the SARS-CoV-2 B.1.1.7 variant in an asymptomatic dog.

Virus
Location
Supporting text

Here, as part of a large-scale study on SARS-CoV-2 prevalence in pets in Spain, we have detected the B.1.1.7 variant of concern (VOC) in a dog whose owners were infected with SARS-CoV-2.

Method
genomic investigation; viral isolation
Sample type
nasal swab; rectal swab
Geographic raw
Spain
Country inferred
Spain