ArticlePloS one2021
Investigation of SARS-CoV-2 infection in dogs and cats of humans diagnosed with COVID-19 in Rio de Janeiro, Brazil.
Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 102 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
102 citing papers in PubMed, 2 syntheses or guidelines pooled it, 166 citations in OpenAlex.
- Assessment of the Risk Impact of SARS-CoV-2 Infection Prevalence between Cats and Dogs in America and Europe: A Systematic Review and Meta-Analysis.Pathogens (Basel, Switzerland) · 2024Pooled it
- SARS-CoV-2 natural infection in animals: a systematic review of studies and case reports and series.The veterinary quarterly · 2021Pooled it
- Active surveillance reveals common SARS-CoV-2 infections among cats and dogs from households with human COVID-19 cases in Texas, USA.One health (Amsterdam, Netherlands) · 2026Article
- SARS-CoV-2 infection in dogs, dog owners, dog breeders, and veterinarians in the Ashanti and Greater Accra regions of Ghana-zoonotic implications.Frontiers in veterinary science · 2026Article
- SARS-CoV-2 at the human-pet interface: transmission and pre-existing immunity in pets within infected households.Frontiers in veterinary science · 2026Article
- Nationwide seroprevalence of SARS-CoV-2 Delta variant and five Omicron sublineages in companion cats and dogs in the USA: insights into their role in COVID-19 epidemiology.Emerging microbes & infections · 2025Article
- Household clusters of SARS-CoV-2 Omicron subvariants contemporaneously sequenced from dogs and their owners.mSphere · 2025Article
- Molecular Evidence of SARS-CoV-2 Virus in Dogs and Cats from Grenada.Veterinary sciences · 2025Article
- One Health Surveillance for SARS-CoV-2 in Non-Human Primates and Small Mammals in Minas Gerais, Brazil.Pathogens (Basel, Switzerland) · 2025Article
- Repeated detection of SARS-CoV-2 in pet dogs in Ibadan, Oyo State, Nigeria: a cause for vigilance.BMC veterinary research · 2025Article
- Surveillance of SARS-CoV-2 in Pets of Harris County, Texas, Revealed More Common Pet Infections in Households With Human COVID-19 Cases.Veterinary medicine and science · 2025Article
- A Large-Scale Serological Survey in Pets From October 2020 Through June 2021 in France Shows Significantly Higher Exposure to SARS-CoV-2 in Cats Compared to Dogs.Zoonoses and public health · 2025Article
- Cross-Species Surveillance of Respiratory Viruses in Domestic and Wild Mammals of an Urban Atlantic Forest from Brazil.EcoHealth · 2025Article
- Seroprevalence of SARS-CoV-2 in cats from COVID-19 positive households in the Lisbon area.Frontiers in veterinary science · 2025Article
- High seroprevalence of SARS-CoV-2 in cats linked to human infection in a Latin American country with elevated COVID-19 transmission and mortality.Frontiers in veterinary science · 2025Article
- First detection of Omicron variant BA.4.1 lineage in dogs, Chile.The veterinary quarterly · 2024Article
- Higher Frequency of SARS-CoV-2 RNA Shedding by Cats than Dogs in Households with Owners Recently Diagnosed with COVID-19.Viruses · 2024Article
- High prevalence of SARS-CoV-2 antibodies and low prevalence of SARS-CoV-2 RNA in cats recently exposed to human cases.BMC veterinary research · 2024Article
- Investigation of SARS-CoV-2 Infection among Companion Animals in Households with Confirmed Human COVID-19 Cases.Pathogens (Basel, Switzerland) · 2024Article
- Prevalence of SARS-CoV-2 in domestic cats (Felis catus) during COVID-19 pandemic in Latvia.Veterinary medicine and science · 2024Article
42 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
25 authors at 3 institutions in 2 countries.
Funding
Abstract
backgroundInfection by SARS-CoV-2 in domestic animals has been related to close contact with humans diagnosed with COVID-19. Objectives: To assess the exposure, infection, and persistence by SARS-CoV-2 of dogs and cats living in the same households of humans that tested positive for SARS-CoV-2, and to investigate clinical and laboratory alterations associated with animal infection.
methodsAnimals living with COVID-19 patients were longitudinally followed and had nasopharyngeal/oropharyngeal and rectal swabs collected and tested for SARS-CoV-2. Additionally, blood samples were collected for laboratory analysis, and plaque reduction neutralization test (PRNT90) to investigate specific SARS-CoV-2 antibodies.
resultsBetween May and October 2020, 39 pets (29 dogs and 10 cats) of 21 patients were investigated. Nine dogs (31%) and four cats (40%) from 10 (47.6%) households were infected with or seropositive for SARS-CoV-2. Animals tested positive from 11 to 51 days after the human index COVID-19 case onset of symptoms. Three dogs tested positive twice within 14, 30, and 31 days apart. SARS-CoV-2 neutralizing antibodies were detected in one dog (3.4%) and two cats (20%). In this study, six out of thirteen animals either infected with or seropositive for SARS-CoV-2 have developed mild but reversible signs of the disease. Using logistic regression analysis, neutering, and sharing bed with the ill owner were associated with pet infection.
conclusionsThe presence and persistence of SARS-CoV-2 infection have been identified in dogs and cats from households with human COVID-19 cases in Rio de Janeiro, Brazil. People with COVID-19 should avoid close contact with their pets during the time of their illness.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.