High seroprevalence for SARS-CoV-2 infection in dogs: Age as risk factor for infection in shelter and foster home animals

Nilsson, Mariana Guimarães; Santana Cordeiro, Mirza de Carvalho; Gonçalves, Ana Carolina Aparecida; dos Santos Conzentino, Marcelo; Huergo, Luciano Fernandes; Vicentini, Fernando; Reis, Jeiza Botelho Leal; Biondo, Alexander Welker; Kmetiuk, Louise Bach; da Silva, Aristeu Vieira

doi:10.1016/j.prevetmed.2023.106094

Preventive Veterinary Medicine

2024

DOI: 10.1016/j.prevetmed.2023.106094

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High seroprevalence for SARS-CoV-2 infection in dogs: Age as risk factor for infection in shelter and foster home animals

Mariana Guimarães Nilsson,

Mirza de Carvalho Santana Cordeiro,

Ana Carolina Aparecida Gonçalves

et al.

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2024

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Cited by 3 publications

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SARS-CoV-2 exposure in hunting and stray dogs of southern Italy

Ferrara,

Pagnini,

Montagnaro

2024

Vet Res Commun

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Evidence of exposure to the pandemic SARS-CoV-2 has been described in numerous animal species, including pets, which are predisposed to coming into contact with this virus due to their close relationship with owners. It has been accepted that dogs are poorly susceptible to this virus and that seroconversion, rather than shedding, occurs following infection, which can occur directly through contact with infected owners or indirectly through environmental contamination. In this study, the seroprevalence of SARS-CoV-2 was evaluated in apparently health hunting and stray dogs of Campania region, southern Italy (sampled in September 2023). A total of 5/112 (4.5%) animals tested seropositive using two different commercial ELISAs. Stray animals had greater exposure than hunting dogs. The feces and blood of each animal were tested with a real-time PCR targeting the nucleocapsid and ORF1ab coding sequences. No animal tested positive in molecular investigations, indicating a past exposure without active infection at the time of sampling.

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SARS-CoV-2 exposure in hunting and stray dogs of southern Italy

Ferrara,

Pagnini,

Montagnaro

2024

Vet Res Commun

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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

Barua,

Iduu,

Barrantes Murillo

et al. 2024

Emerging Microbes & Infections

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Understanding SARS-CoV-2 epidemiology in companion animals is critical for evaluating their role in viral transmission and their potential as sentinels for human infections. This large-scale serosurvey analyzed serum samples from 706 cats and 2,396 dogs collected across the USA in 2023 using a surrogate virus neutralization test (sVNT) to detect SARS-CoV-2 antibodies. Overall, 5.7% of cats and 4.7% of dogs tested positive for antibodies, with younger animals (under 12 months) showing significantly lower seropositivity rates ( p = 0.0048). Additionally, we analyzed 153 positive samples for variant-specific antibody responses using six sVNT kits targeting the Delta variant and five Omicron sublineages. Among cats, 67.5% showed antibodies to Delta, with positivity rates for Omicron sublineages as follows: BA.1 (62.5%), BA.2 (42.5%), BA.4/BA.5 (77.5%), XBB (52.5%), and XBB.1.5 (45.0%). In dogs, 55.8% were positive for Delta, and Omicron sublineage rates were BA.1 (46.0%), BA.4/BA.5 (37.2%), XBB (58.4%), BA.2 (13.3%), and XBB.1.5 (9.7%). Given the close contact between companion animals and humans, and the persistence of antibodies against various SARS-CoV-2 variants and sublineages, our findings suggest that seroprevalence in cats and dogs may serve as valuable tool for tracking COVID-19 epidemiology.

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Small animal review

Gough

2024

Companion Animal

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High seroprevalence for SARS-CoV-2 infection in dogs: Age as risk factor for infection in shelter and foster home animals

Cited by 3 publications

References 50 publications

SARS-CoV-2 exposure in hunting and stray dogs of southern Italy

SARS-CoV-2 exposure in hunting and stray dogs of southern Italy

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

Small animal review

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