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Park ES, Kuroda Y, Uda A, Kaku Y, Okutani A, Hotta A, Tatemoto K, Ishijima K, Inoue Y, Harada M, Ami Y, Shirakura M, Watanabe S, Suzuki Y, Harada T, Ainai A, Shiwa N, Sakai Y, Iwata-Yoshikawa N, Nagata N, Suzuki T, Hasegawa H, Maeda K. The comparison of pathogenicity among SARS-CoV-2 variants in domestic cats. Sci Rep 2024; 14:21815. [PMID: 39294189 PMCID: PMC11410826 DOI: 10.1038/s41598-024-71791-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Accepted: 08/30/2024] [Indexed: 09/20/2024] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been detected or isolated from domestic cats. It is unclear whether cats play an important role in the SARS-CoV-2 transmission cycle. In this study, we examined the susceptibility of cats to SARS-CoV-2, including wild type and variants, by animal experiments. Cats inoculated with wild type, gamma, and delta variants secreted a large amount of SARS-CoV-2 for 1 week after the inoculation from nasal, oropharyngeal, and rectal routes. Only 100 TCID50 of virus could infect cats and replicate well without severe clinical symptoms. In addition, one cat inoculated with wild type showed persistent virus secretion in feces for over 28 days post-inoculation (dpi). The titer of virus-neutralizing (VN) antibodies against SARS-CoV-2 increased from 11 dpi, reaching a peak at 14 dpi. However, the omicron variant could not replicate well in cat tissues and induced a lower titer of VN antibodies. It is concluded that cats were highly susceptible to SARS-CoV-2 infection, but not to the Omicron Variant, which caused the attenuated pathogenicity.
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Affiliation(s)
- Eun-Sil Park
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Yudai Kuroda
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Akihiko Uda
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Yoshihiro Kaku
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Akiko Okutani
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Akitoyo Hotta
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
- Research Center for Biosafety, Laboratory Animal, and Pathogen Bank, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Kango Tatemoto
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Keita Ishijima
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Yusuke Inoue
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Michiko Harada
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
- Joint Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, 753-8515, Japan
| | - Yasushi Ami
- Research Center for Biosafety, Laboratory Animal, and Pathogen Bank, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Masayuki Shirakura
- Research Center for Influenza and Respiratory Viruses, National Institute of Infectious Diseases, Musashimurayama, 208-0011, Japan
| | - Shinji Watanabe
- Research Center for Influenza and Respiratory Viruses, National Institute of Infectious Diseases, Musashimurayama, 208-0011, Japan
| | - Yasushi Suzuki
- Research Center for Influenza and Respiratory Viruses, National Institute of Infectious Diseases, Musashimurayama, 208-0011, Japan
| | - Toshihiko Harada
- Research Center for Biosafety, Laboratory Animal, and Pathogen Bank, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Akira Ainai
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Nozomi Shiwa
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Yusuke Sakai
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Naoko Iwata-Yoshikawa
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Noriyo Nagata
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Tadaki Suzuki
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Hideki Hasegawa
- Research Center for Influenza and Respiratory Viruses, National Institute of Infectious Diseases, Musashimurayama, 208-0011, Japan
| | - Ken Maeda
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan.
- Joint Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, 753-8515, Japan.
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Yamayoshi S, Ito M, Iwatsuki-Horimoto K, Yasuhara A, Okuda M, Hamabata T, Murakami J, Duong C, Yamamoto T, Kuroda Y, Maeda K, Kawaoka Y. Seroprevalence of SARS-CoV-2 antibodies in dogs and cats during the early and mid-pandemic periods in Japan. One Health 2023; 17:100588. [PMID: 37359748 PMCID: PMC10279464 DOI: 10.1016/j.onehlt.2023.100588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/17/2023] [Accepted: 06/19/2023] [Indexed: 06/28/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has continued to circulate in humans since its emergence in 2019. While infection in humans continues, numerous spillover events to at least 32 animal species, including companion and zoo animals, have been reported. Since dogs and cats are highly susceptible to SARS-CoV-2 and have direct contact with their owners and other household members, it is important to know the prevalence of SARS-CoV-2 in dogs and cats. Here, we established an ELISA to detect serum antibodies against the receptor-binding domain and the ectodomain of the SARS-CoV-2 spike and nucleocapsid proteins. Using this ELISA, we assessed seroprevalence in 488 dog serum samples and 355 cat serum samples that were collected during the early pandemic period (between May and June of 2020) and 312 dog serum samples and 251 cat serum samples that were collected during the mid-pandemic period (between October 2021 and January 2022). We found that two dog serum samples (0.41%) collected in 2020, one cat serum sample (0.28%) collected in 2020, and four cat serum samples (1.6%) collected in 2021 were positive for antibodies against SARS-CoV-2. No dog serum samples collected in 2021 were positive for these antibodies. We conclude that the seroprevalence of SARS-CoV-2 antibodies in dogs and cats in Japan is low, suggesting that these animals are not a major SARS-CoV-2 reservoir.
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Affiliation(s)
- Seiya Yamayoshi
- Division of Virology, Institute of Medical Science, University of Tokyo, Japan
- International Research Center for Infectious Diseases, Institute of Medical Science, University of Tokyo, Japan
- Research Center for Global Viral Infections, National Center for Global Health and Medicine Research Institute, Japan
| | - Mutsumi Ito
- Division of Virology, Institute of Medical Science, University of Tokyo, Japan
| | | | - Atsuhiro Yasuhara
- Division of Virology, Institute of Medical Science, University of Tokyo, Japan
| | - Moe Okuda
- Division of Virology, Institute of Medical Science, University of Tokyo, Japan
| | - Taiki Hamabata
- Division of Virology, Institute of Medical Science, University of Tokyo, Japan
| | - Jurika Murakami
- Division of Virology, Institute of Medical Science, University of Tokyo, Japan
| | - Calvin Duong
- Division of Virology, Institute of Medical Science, University of Tokyo, Japan
| | - Tsukasa Yamamoto
- Department of Veterinary Science, National Institute of Infectious Diseases, Japan
| | - Yudai Kuroda
- Department of Veterinary Science, National Institute of Infectious Diseases, Japan
| | - Ken Maeda
- Department of Veterinary Science, National Institute of Infectious Diseases, Japan
| | - Yoshihiro Kawaoka
- Division of Virology, Institute of Medical Science, University of Tokyo, Japan
- Research Center for Global Viral Infections, National Center for Global Health and Medicine Research Institute, Japan
- The University of Tokyo Pandemic Preparedness, Infection and Advanced Research Center, Japan
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, USA
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Tinto B, Revel J, Virolle L, Chenet B, Reboul Salze F, Ortega A, Beltrame M, Simonin Y. Monitoring SARS-CoV-2 Seroprevalence in Domestics and Exotic Animals in Southern France. Trop Med Infect Dis 2023; 8:426. [PMID: 37755888 PMCID: PMC10534723 DOI: 10.3390/tropicalmed8090426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 08/15/2023] [Accepted: 08/24/2023] [Indexed: 09/28/2023] Open
Abstract
Since late 2019, Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has emerged as a significant global threat to public health. Responsible for the COVID-19 pandemic, this new coronavirus has prompted extensive scientific research to comprehend its transmission dynamics, especially among humans. However, as our understanding deepens, it becomes increasingly clear that SARS-CoV-2's impact goes beyond human populations. Recent investigations have illuminated the transmission of the virus between humans and various animal species, raising important questions about zoonotic spillover events and their potential implications for both human and animal health. Our study set out to investigate the prevalence of SARS-CoV-2 in domestic animals (dogs and cats) and zoo animals in the south of France in 2021 and 2022, covering pre-Omicron and Omicron waves. We identified evidence of SARS-CoV-2 antibodies not only in domestic dogs and cats but also in several mammals in zoos. This study shows the importance of implementing surveillance measures, including serological studies, to identify and monitor cases of SARS-CoV-2 infection in animals.
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Affiliation(s)
- Bachirou Tinto
- Centre MURAZ, Institut National de Santé Publique (INSP), Bobo-Dioulasso 01, Burkina Faso;
- Pathogenesis and Control of Chronic Infections, University of Montpellier, INSERM, Etablissement Français du Sang, 34394 Montpellier, France;
| | - Justine Revel
- Pathogenesis and Control of Chronic Infections, University of Montpellier, INSERM, Etablissement Français du Sang, 34394 Montpellier, France;
| | - Laurie Virolle
- Parc de Lunaret—Zoo de Montpellier, 34090 Montpellier, France; (L.V.); (B.C.)
| | - Baptiste Chenet
- Parc de Lunaret—Zoo de Montpellier, 34090 Montpellier, France; (L.V.); (B.C.)
| | | | - Alix Ortega
- Sigean African Reserve, 11130 Sigean, France; (A.O.)
| | | | - Yannick Simonin
- Pathogenesis and Control of Chronic Infections, University of Montpellier, INSERM, Etablissement Français du Sang, 34394 Montpellier, France;
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Low Prevalence of SARS-CoV-2 Antibodies in Canine and Feline Serum Samples Collected during the COVID-19 Pandemic in Hong Kong and Korea. Viruses 2023; 15:v15020582. [PMID: 36851796 PMCID: PMC9967295 DOI: 10.3390/v15020582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/06/2023] [Accepted: 02/10/2023] [Indexed: 02/22/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has affected millions of people worldwide since its emergence in 2019. Knowing the potential capacity of the virus to adapt to other species, the serological surveillance of SARS-CoV-2 infection in susceptible animals is important. Hong Kong and Seoul are two of Asia's most densely populated urban cities, where companion animals often live in close contact with humans. Sera collected from 1040 cats and 855 dogs during the early phase of the pandemic in Hong Kong and Seoul were tested for SARS-CoV-2 antibodies using an ELISA that detects antibodies against the receptor binding domain of the viral spike protein. Positive sera were also tested for virus neutralizing antibodies using a surrogate virus neutralization (sVNT) and plaque reduction neutralization test (PRNT). Among feline sera, 4.51% and 2.54% of the samples from Korea and Hong Kong, respectively, tested ELISA positive. However, only 1.64% of the samples from Korea and 0.18% from Hong Kong tested positive by sVNT, while only 0.41% of samples from Korea tested positive by PRNT. Among canine samples, 4.94% and 6.46% from Korea and Hong Kong, respectively, tested positive by ELISA, while only 0.29% of sera from Korea were positive on sVNT and no canine sera tested positive by PRNT. These results confirm a low seroprevalence of SARS-CoV-2 exposure in companion animals in Korea and Hong Kong. The discordance between the RBD-ELISA and neutralization tests may indicate possible ELISA cross-reactivity with other coronaviruses, especially in canine sera.
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Guo R, Wolff C, Prada JM, Mughini-Gras L. When COVID-19 sits on people's laps: A systematic review of SARS-CoV-2 infection prevalence in household dogs and cats. One Health 2023; 16:100497. [PMID: 36778083 PMCID: PMC9896854 DOI: 10.1016/j.onehlt.2023.100497] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
During the COVID-19 pandemic, questions were raised about whether SARS-CoV-2 can infect pets and the potential risks posed to and by their human owners. We performed a systematic review of studies on SARS-CoV-2 infection prevalence in naturally infected household dogs and cats conducted worldwide and published before January 2022. Data on SARS-CoV-2 infection prevalence, as determined by either molecular or serological methods, and accompanying information, were summarized. Screening studies targeting the general dog or cat populations were differentiated from those targeting households with known COVID-19-positive people. Studies focusing on stray, sheltered or working animals were excluded. In total, 17 studies were included in this review. Fourteen studies investigated cats, 13 investigated dogs, and 10 investigated both. Five studies reported molecular prevalence, 16 reported seroprevalence, and four reported both. All but two studies started and ended in 2020. Studies were conducted in eight European countries (Italy, France, Spain, Croatia, Germany, the Netherlands, UK, Poland), three Asian countries (Iran, Japan, China) and the USA. Both molecular and serological prevalence in the general pet population were usually below 5%, but exceeded 10% when COVID-19 positive people were known to be present in the household. A meta-analysis provided pooled seroprevalence estimates in the general pet population: 2.75% (95% Confidence Interval [CI]: 1.56-4.79%) and 0.82% (95% CI: 0.26-2.54%) for cats and dogs, respectively. This review highlighted the need for a better understanding of the possible epizootic implications of the COVID-19 pandemic, as well as the need for global standards for SARS-CoV-2 detection in pets.
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Affiliation(s)
- Ruoshui Guo
- Utrecht University, Utrecht, the Netherlands
| | | | | | - Lapo Mughini-Gras
- Utrecht University, Utrecht, the Netherlands,National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands,Corresponding author at: National Institute for Public Health and the Environment (RIVM), Centre for Infectious Disease Control (CIb), Antonie van Leeuwenhoeklaan 9, 3721MA Bilthoven, Utrecht, the Netherlands.
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Kaczorek-Łukowska E, Wernike K, Beer M, Wróbel M, Małaczewska J, Mikulska-Skupień E, Malewska K, Mielczarska I, Siwicki AK. High Seroprevalence against SARS-CoV-2 among Dogs and Cats, Poland, 2021/2022. Animals (Basel) 2022; 12:2016. [PMID: 36009608 PMCID: PMC9404425 DOI: 10.3390/ani12162016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/06/2022] [Accepted: 08/07/2022] [Indexed: 12/22/2022] Open
Abstract
The coronavirus SARS-CoV-2 is responsible for a pandemic in the human population that has unfolded since the beginning of 2020 and has led to millions of deaths globally. Apart from humans, SARS-CoV-2 has been confirmed in various animal species, including felines, canines, mustelids, and primates. Of these species, dogs and cats are the most popular companion animals worldwide. Several seroprevalence studies have already been performed in these animal species; however, the results vary depending on the location and especially the time of sampling. Here, serum samples were collected from a total of 388 dogs and 243 cats from three veterinary clinics in two cities (Gdańsk and Olsztyn) in Poland between October 2021 and February 2022, when the country was in the midst of the fourth wave of viral spread. All sera were tested for antibodies against SARS-CoV-2 by a multispecies ELISA based on the receptor-binding domain and by an indirect immunofluorescence assay (iIFA). Overall, 18.9% of the feline sera and 16.0% of the canine sera tested positive using ELISA and iIFA. This relatively high seroprevalence among randomly selected animals is most likely related to the high case numbers in the human population and indicates a continuous occurrence of transspecies virus transmissions from infected owners to their pets. Hence, dogs and cats should be included in monitoring studies and/or outbreak investigations for a better understanding of the epidemiology of this virus.
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Affiliation(s)
- Edyta Kaczorek-Łukowska
- Department of Microbiology and Clinical Immunology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland
| | - Kerstin Wernike
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493 Greifswald—Insel Riems, Germany
| | - Martin Beer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493 Greifswald—Insel Riems, Germany
| | - Małgorzata Wróbel
- Department of Microbiology and Clinical Immunology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland
| | - Joanna Małaczewska
- Department of Microbiology and Clinical Immunology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland
| | | | - Karolina Malewska
- Veterinary Polyclinic, University of Warmia and Mazury in Olsztyn, Oczapowskiego 14, 10-719 Olsztyn, Poland
| | | | - Andrzej Krzysztof Siwicki
- Department of Microbiology and Clinical Immunology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland
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