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Brostoff T, Savage HP, Jackson KA, Dutra JC, Fontaine JH, Hartigan-O’Connor DJ, Carney RP, Pesavento PA. Feline Infectious Peritonitis mRNA Vaccine Elicits Both Humoral and Cellular Immune Responses in Mice. Vaccines (Basel) 2024; 12:705. [PMID: 39066343 PMCID: PMC11281389 DOI: 10.3390/vaccines12070705] [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: 04/20/2024] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 07/28/2024] Open
Abstract
Feline infectious peritonitis (FIP) is a devastating and often fatal disease caused by feline coronavirus (FCoV). Currently, there is no widely used vaccine for FIP, and many attempts using a variety of platforms have been largely unsuccessful due to the disease's highly complicated pathogenesis. One such complication is antibody-dependent enhancement (ADE) seen in FIP, which occurs when sub-neutralizing antibody responses to viral surface proteins paradoxically enhance disease. A novel vaccine strategy is presented here that can overcome the risk of ADE by instead using a lipid nanoparticle-encapsulated mRNA encoding the transcript for the internal structural nucleocapsid (N) FCoV protein. Both wild type and, by introduction of silent mutations, GC content-optimized mRNA vaccines targeting N were developed. mRNA durability in vitro was characterized by quantitative reverse-transcriptase PCR and protein expression by immunofluorescence assay for one week after transfection of cultured feline cells. Both mRNA durability and protein production in vitro were improved with the GC-optimized construct as compared to wild type. Immune responses were assayed by looking at N-specific humoral (by ELISA) and stimulated cytotoxic T cell (by flow cytometry) responses in a proof-of-concept mouse vaccination study. These data together demonstrate that an LNP-mRNA FIP vaccine targeting FCoV N is stable in vitro, capable of eliciting an immune response in mice, and provides justification for beginning safety and efficacy trials in cats.
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Affiliation(s)
- Terza Brostoff
- Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA; (H.P.S.); (K.A.J.); (P.A.P.)
| | - Hannah P. Savage
- Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA; (H.P.S.); (K.A.J.); (P.A.P.)
| | - Kenneth A. Jackson
- Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA; (H.P.S.); (K.A.J.); (P.A.P.)
| | - Joseph C. Dutra
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, CA 95616, USA; (J.C.D.); (J.H.F.); (D.J.H.-O.)
| | - Justin H. Fontaine
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, CA 95616, USA; (J.C.D.); (J.H.F.); (D.J.H.-O.)
| | - Dennis J. Hartigan-O’Connor
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, CA 95616, USA; (J.C.D.); (J.H.F.); (D.J.H.-O.)
| | - Randy P. Carney
- Department of Biomedical Engineering, University of California, Davis, Davis, CA 95616, USA;
| | - Patricia A. Pesavento
- Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA; (H.P.S.); (K.A.J.); (P.A.P.)
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Mūrniece G, Šteingolde Ž, Cvetkova S, Valciņa O, Zrelovs Ņ, Brīvība M, Kloviņš J, Birzniece L, Megnis K, Fridmanis D, Bērziņš A, Kovaļčuka L, Kovaļenko K. Prevalence of SARS-CoV-2 in domestic cats (Felis catus) during COVID-19 pandemic in Latvia. Vet Med Sci 2024; 10:e1338. [PMID: 38140758 PMCID: PMC10951624 DOI: 10.1002/vms3.1338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 10/20/2023] [Accepted: 12/03/2023] [Indexed: 12/24/2023] Open
Abstract
BACKGROUND The causative agent of the COVID-19 pandemic, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is of zoonotic origin and has shown reverse zoonotic transmissibility. OBJECTIVES The aim of this cross-sectional study was to investigate the serological and molecular prevalence of SARS-CoV-2 infection in the domestic cat (Felis catus) population from Latvia in natural conditions and subsequently perform viral genome analysis. METHODS Oropharyngeal and rectal swabs and blood samples were collected from 273 domestic cats during the second wave of COVID-19 infection in Latvia. Molecular prevalence was determined by using reverse transcriptase-polymerase chain reaction (RT-PCR). Serum samples were analysed via double antigen enzyme-linked immunosorbent assay targeting the antibody against the nucleocapsid protein of SARS-CoV-2. Positive swab samples were analysed using whole viral genome sequencing and subsequent phylogenetic analysis of the whole genome sequencing data of the samples was performed. RESULTS The overall SARS-CoV-2 RT-PCR positivity and seroprevalence was 1.1% (3/273) and 2.6% (7/273), respectively. The SARS-CoV-2 genome sequences from three RT-PCR positive cats were assigned to the three common lineages (PANGOLIN lineage S.1.; B.1.177.60. and B.1.1.7.) circulating in Latvia during the particular period of time. CONCLUSIONS These findings indicate that feline infection with SARS-CoV-2 occurred during the second wave of the COVID-19 pandemic in Latvia, yet the overall prevalence was low. In addition, it seems like no special 'cat' pre-adaptations were necessary for successful infection of cats by the common lineages of SARS-CoV-2.
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Affiliation(s)
- Gundega Mūrniece
- Faculty of Veterinary MedicineLatvia University of Life Sciences and TechnologiesJelgavaLatvia
| | - Žanete Šteingolde
- Institute of Food SafetyAnimal Health and Environment “BIOR”RigaLatvia
| | - Svetlana Cvetkova
- Institute of Food SafetyAnimal Health and Environment “BIOR”RigaLatvia
| | - Olga Valciņa
- Institute of Food SafetyAnimal Health and Environment “BIOR”RigaLatvia
| | | | - Monta Brīvība
- Latvian Biomedical Research and Study CentreRigaLatvia
| | - Jānis Kloviņš
- Latvian Biomedical Research and Study CentreRigaLatvia
| | | | | | | | - Aivars Bērziņš
- Faculty of Veterinary MedicineLatvia University of Life Sciences and TechnologiesJelgavaLatvia
- Institute of Food SafetyAnimal Health and Environment “BIOR”RigaLatvia
| | - Līga Kovaļčuka
- Faculty of Veterinary MedicineLatvia University of Life Sciences and TechnologiesJelgavaLatvia
| | - Kaspars Kovaļenko
- Faculty of Veterinary MedicineLatvia University of Life Sciences and TechnologiesJelgavaLatvia
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3
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Wang Y, Liu Y, Wang J, Zhang M, Deng X, Song J, Zhu J, Yu L, Li G, Liu G. An adenovirus-vectored vaccine based on the N protein of feline coronavirus elicit robust protective immune responses. Antiviral Res 2024; 223:105825. [PMID: 38311297 DOI: 10.1016/j.antiviral.2024.105825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
Feline coronavirus (FCoV) is an unsegmented, single-stranded RNA virus belonging to the Alphacoronavirus genus. It can cause fatal feline infectious peritonitis (FIP) in cats of any ages. Currently, there are no effective prevention and control measures to against FCoV. In this study, we developed a recombinant adenovirus vaccine, AD5-N, based on the nucleocapsid(N) protein of FCoV. The immunogenicity of AD5-N was evaluated through intramuscular immunization in 6-week-old Balb/c mice and 9-12 months old cats. Compared to the control group, AD5-N specifically induced a significant increase in IgG and SIgA levels in the vaccinated mice. Furthermore, AD5-N not only effectively promoted strong cellular immune responses in cats but also induced high levels of specific SIgA, effectively helping cats resist FCoV infection. Our findings suggest that adenovirus vector vaccines based on the N gene have the potential to become candidate vaccines for the prevention and control of FCoV infection.
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Affiliation(s)
- Yuanhong Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, PR China
| | - Yun Liu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, PR China
| | - Junna Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, PR China
| | - Miao Zhang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, PR China
| | - Xiaoying Deng
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, PR China
| | - Junhan Song
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, PR China
| | - Jie Zhu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, PR China
| | - Lingxue Yu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, PR China.
| | - Guoxin Li
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, PR China.
| | - Guangqing Liu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, PR China.
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4
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Duijvestijn MBHM, Schuurman NNMP, Vernooij JCM, van Leeuwen MAJM, Bosch BJ, van den Brand JMA, Wagenaar JA, van Kuppeveld FJM, Egberink HF, Verhagen JH. Serological Survey of Retrovirus and Coronavirus Infections, including SARS-CoV-2, in Rural Stray Cats in The Netherlands, 2020-2022. Viruses 2023; 15:1531. [PMID: 37515217 PMCID: PMC10385588 DOI: 10.3390/v15071531] [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: 05/30/2023] [Revised: 07/06/2023] [Accepted: 07/08/2023] [Indexed: 07/30/2023] Open
Abstract
Stray cats can host (zoonotic) viral pathogens and act as a source of infection for domestic cats or humans. In this cross-sectional (sero)prevalence study, sera from 580 stray cats living in 56 different cat groups in rural areas in The Netherlands were collected from October 2020 to July 2022. These were used to investigate the prevalence of the cat-specific feline leukemia virus (FeLV, n = 580), the seroprevalence of the cat-specific feline viruses feline immunodeficiency virus (FIV, n = 580) and feline coronavirus (FCoV, n = 407), and the zoonotic virus severe acute respiratory coronavirus-2 (SARS-CoV-2, n = 407) using enzyme-linked immunosorbent assays (ELISAs). ELISA-positive results were confirmed using Western blot (FIV) or pseudovirus neutralization test (SARS-CoV-2). The FIV seroprevalence was 5.0% (95% CI (Confidence Interval) 3.4-7.1) and ranged from 0-19.0% among groups. FIV-specific antibodies were more often detected in male cats, cats ≥ 3 years and cats with reported health problems. No FeLV-positive cats were found (95% CI 0.0-0.6). The FCoV seroprevalence was 33.7% (95% CI 29.1-38.5) and ranged from 4.7-85.7% among groups. FCoV-specific antibodies were more often detected in cats ≥ 3 years, cats with reported health problems and cats living in industrial areas or countryside residences compared to cats living at holiday parks or campsites. SARS-CoV-2 antibodies against the subunit 1 (S1) and receptor binding domain (RBD) protein were detected in 2.7% (95% CI 1.4-4.8) of stray cats, but sera were negative in the pseudovirus neutralization test and therefore were considered SARS-CoV-2 suspected. Our findings suggest that rural stray cats in The Netherlands can be a source of FIV and FCoV, indicating a potential risk for transmission to other cats, while the risk for FeLV is low. However, suspected SARS-CoV-2 infections in these cats were uncommon. We found no evidence of SARS-CoV-2 cat-to-cat spread in the studied stray cat groups and consider the likelihood of spillover to humans as low.
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Affiliation(s)
- Mirjam B H M Duijvestijn
- Clinical Infectiology, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
| | - Nancy N M P Schuurman
- Section of Virology, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
| | - Johannes C M Vernooij
- Division of Farm Animal Health, Department of Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 7, 3584 CL Utrecht, The Netherlands
| | | | - Berend-Jan Bosch
- Section of Virology, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
| | - Judith M A van den Brand
- Division of Pathology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
| | - Jaap A Wagenaar
- Clinical Infectiology, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
| | - Frank J M van Kuppeveld
- Section of Virology, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
| | - Herman F Egberink
- Clinical Infectiology, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
- Section of Virology, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
| | - Josanne H Verhagen
- Clinical Infectiology, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
- Section of Virology, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
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5
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Imanishi I, Asahina R, Hayashi S, Uchiyama J, Hisasue M, Yamasaki M, Murata Y, Morikawa S, Mizutani T, Sakaguchi M. Guest edited collection serological study of SARS-CoV-2 antibodies in japanese cats using protein-A/G-based ELISA. BMC Vet Res 2022; 18:443. [PMID: 36539820 PMCID: PMC9767852 DOI: 10.1186/s12917-022-03527-7] [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: 11/25/2021] [Accepted: 11/24/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Little is known about the epidemic status of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in cats in Japan due to insufficiently reliable seroepidemiological analysis methods that are easy to use in cats. RESULTS We developed a protein-A/G-based enzyme-linked immunosorbent assay (ELISA) to detect antibodies against SARS-CoV-2 in cats. The assay was standardized using positive rabbit antibodies against SARS-CoV-2. The ELISA results were consistent with those of a conventional anti-feline-immunoglobulin-G (IgG)-based ELISA. To test the protein-A/G-based ELISA, we collected blood samples from 1,969 cats that had been taken to veterinary clinics in Japan from June to July 2020 and determined the presence of anti-SARS-CoV-2 antibodies. Nine cats were found to have SARS-CoV-2 S1-specific IgG, of which 4 had recombinant receptor-binding domain-specific IgG. Of those 9 samples, one showed neutralizing activity. Based on these findings, we estimated that the prevalence of SARS-CoV-2 neutralizing antibodies in cats in Japan was 0.05% (1/1,969 samples). This prevalence was consistent with the prevalence of neutralizing antibodies against SARS-CoV-2 in humans in Japan according to research conducted at that time. CONCLUSIONS Protein-A/G-based ELISA has the potential to be a standardized method for measuring anti-SARS-CoV-2 antibodies in cats. The infection status of SARS-CoV-2 in cats in Japan might be linked to that in humans.
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Affiliation(s)
- Ichiro Imanishi
- grid.410786.c0000 0000 9206 2938Department of Microbiology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku Sagamihara-shi, Kanagawa, Kanagawa Japan
| | - Ryota Asahina
- grid.258799.80000 0004 0372 2033Faculty of Medicine, Department of Dermatology, Kyoto University, Kyoto, Japan
| | - Shunji Hayashi
- grid.410786.c0000 0000 9206 2938Department of Microbiology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku Sagamihara-shi, Kanagawa, Kanagawa Japan
| | - Jumpei Uchiyama
- grid.261356.50000 0001 1302 4472Department of Bacteriology, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Masaharu Hisasue
- grid.252643.40000 0001 0029 6233Center for Human and Animal Symbiosis Science, Azabu University, Kanagawa, Japan
| | - Masahiro Yamasaki
- grid.411792.80000 0001 0018 0409Department of Veterinary Internal Medicine, Iwate University, Iwate, Japan
| | - Yoshiteru Murata
- grid.136594.c0000 0001 0689 5974Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Tokyo, Japan ,Murata Animal Hospital, Chiba, Japan
| | - Shigeru Morikawa
- grid.444568.f0000 0001 0672 2184Faculty of Veterinary Medicine, Department of Microbiology, Okayama University of Science, Ehime, Japan
| | - Tetsuya Mizutani
- grid.136594.c0000 0001 0689 5974Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Tokyo, Japan
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Wang A, Zhu X, Chen Y, Sun Y, Liu H, Ding P, Zhou J, Liu Y, Liang C, Yin J, Zhang G. Serological survey of SARS-CoV-2 in companion animals in China. Front Vet Sci 2022; 9:986619. [PMID: 36532346 PMCID: PMC9748147 DOI: 10.3389/fvets.2022.986619] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 11/14/2022] [Indexed: 08/09/2023] Open
Abstract
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) can be transmitted from human to companion animals. The national wide serological surveillance against SARS-CoV-2 was conducted among pet animals, mainly in cats and dogs, 1 year after the first outbreak of COVID-19 in China. All sera were tested for SARS-CoV-2 IgG antibodies using an indirect enzyme linked immunosorbent assay (ELISA) based on the receptor binding domain (RBD) of spike protein. This late survey takes advantage of the short duration of the serological response in these animals to track recent episode of transmission. A total of 20,592 blood samples were obtained from 25 provinces across 7 geographical regions. The overall seroprevalence of SARS-CoV-2 infections in cats was 0.015% (2/13397; 95% confidence intervals (CI): 0.0, 0.1). The virus infections in cats were only detected in Central (Hubei, 0.375%) and Eastern China (Zhejiang, 0.087%) with a seroprevalence estimated at 0.090 and 0.020%, respectively. In dogs, the seroprevalence of SARS-CoV-2 infections was 0.014% (1/7159; 95% CI: 0.0, 0.1) in the entire nation, seropositive samples were limited to Beijing (0.070%) of Northern China with a prevalence of 0.054%. No seropositive cases were discovered in other geographic regions, nor in other companion animals analyzed in this study. These data reveal the circulation of SARS-CoV-2 in companion animals, although transmission of the virus to domestic cats and dogs is low in China, continuous monitoring is helpful for the better understand of the virus transmission status and the effect on animals.
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Affiliation(s)
- Aiping Wang
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Xifang Zhu
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Yumei Chen
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
- Henan Zhongze Biological Engineering Co., Ltd., Zhengzhou, China
| | - Yaning Sun
- Henan Zhongze Biological Engineering Co., Ltd., Zhengzhou, China
| | - Hongliang Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
- Henan Zhongze Biological Engineering Co., Ltd., Zhengzhou, China
| | - Peiyang Ding
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
- Henan Zhongze Biological Engineering Co., Ltd., Zhengzhou, China
| | - Jingming Zhou
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Yankai Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Chao Liang
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Jiajia Yin
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Gaiping Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
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Ortega MM, da Silva LT, Candido ÉD, Zheng Y, Tiyo BT, Ferreira AEF, Corrêa-Silva S, Scagion GP, Leal FB, Chalup VN, Valério CA, Schmitz GJH, Ceneviva C, Corá AP, de Almeida A, Durigon EL, Oliveira DBL, Palmeira P, da Silva Duarte AJ, Carneiro-Sampaio M, Oshiro TM. Salivary, serological, and cellular immune response to the CoronaVac vaccine in health care workers with or without previous COVID-19. Sci Rep 2022; 12:10125. [PMID: 35710573 PMCID: PMC9202665 DOI: 10.1038/s41598-022-14283-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 06/03/2022] [Indexed: 12/28/2022] Open
Abstract
We investigated the anti-SARS-CoV-2 post-vaccine response through serum and salivary antibodies, serum antibody neutralizing activity and cellular immune response in samples from health care workers who were immunized with two doses of an inactivated virus-based vaccine (CoronaVac) who had or did not have COVID-19 previously. IgA and IgG antibodies directed at the spike protein were analysed in samples of saliva and/or serum by ELISA and/or chemiluminescence assays; the neutralizing activity of serum antibodies against reference strain B, Gamma and Delta SARS-CoV-2 variants were evaluated using a virus neutralization test and SARS-CoV-2 reactive interferon-gamma T-cell were analysed by flow cytometry. CoronaVac was able to induce serum and salivary IgG anti-spike antibodies and IFN-γ producing T cells in most individuals who had recovered from COVID-19 and/or were vaccinated. Virus neutralizing activity was observed against the ancestral strain, with a reduced response against the variants. Vaccinated individuals who had previous COVID-19 presented higher responses than vaccinated individuals for all variables analysed. Our study provides evidence that the CoronaVac vaccine was able to induce the production of specific serum and saliva antibodies, serum virus neutralizing activity and cellular immune response, which were increased in previously COVID-19-infected individuals compared to uninfected individuals.
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Affiliation(s)
- Marina Mazzilli Ortega
- Laboratorio de Investigacao Medica em Dermatologia e Imunodeficiencias (LIM 56), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Av. Dr. Eneas Carvalho de Aguiar, 470, Predio 2, 3º andar, Cerqueira Cesar, São Paulo, SP, CEP: 05403-000, Brazil
| | - Laís Teodoro da Silva
- Laboratorio de Investigacao Medica em Dermatologia e Imunodeficiencias (LIM 56), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Av. Dr. Eneas Carvalho de Aguiar, 470, Predio 2, 3º andar, Cerqueira Cesar, São Paulo, SP, CEP: 05403-000, Brazil.
| | - Érika Donizetti Candido
- Laboratorio de Virologia Clinica e Molecular do Instituto de Ciencias Biomedicas da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Yingying Zheng
- Departamento de Pediatria, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Bruna Tiaki Tiyo
- Laboratorio de Investigacao Medica em Dermatologia e Imunodeficiencias (LIM 56), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Av. Dr. Eneas Carvalho de Aguiar, 470, Predio 2, 3º andar, Cerqueira Cesar, São Paulo, SP, CEP: 05403-000, Brazil
| | - Arthur Eduardo Fernandes Ferreira
- Laboratorio de Pediatria Clinica (LIM 36), Departamento de Pediatria, Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Simone Corrêa-Silva
- Departamento de Pediatria, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Guilherme Pereira Scagion
- Laboratorio de Virologia Clinica e Molecular do Instituto de Ciencias Biomedicas da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Fabyano Bruno Leal
- Laboratorio de Virologia Clinica e Molecular do Instituto de Ciencias Biomedicas da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Vanessa Nascimento Chalup
- Laboratorio de Virologia Clinica e Molecular do Instituto de Ciencias Biomedicas da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Camila Araújo Valério
- Laboratorio de Virologia Clinica e Molecular do Instituto de Ciencias Biomedicas da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Gabriela Justamante Händel Schmitz
- Laboratorio de Investigacao Medica em Dermatologia e Imunodeficiencias (LIM 56), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Av. Dr. Eneas Carvalho de Aguiar, 470, Predio 2, 3º andar, Cerqueira Cesar, São Paulo, SP, CEP: 05403-000, Brazil
| | - Carina Ceneviva
- Divisao de Laboratorio Central, Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Aline Pivetta Corá
- Divisao de Laboratorio Central, Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Alexandre de Almeida
- Laboratorio de Investigacao Medica em Dermatologia e Imunodeficiencias (LIM 56), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Av. Dr. Eneas Carvalho de Aguiar, 470, Predio 2, 3º andar, Cerqueira Cesar, São Paulo, SP, CEP: 05403-000, Brazil
| | - Edison Luiz Durigon
- Laboratorio de Virologia Clinica e Molecular do Instituto de Ciencias Biomedicas da Universidade de São Paulo, São Paulo, SP, Brazil
- Plataforma Científica Paster-USP, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Danielle Bruna Leal Oliveira
- Laboratorio de Virologia Clinica e Molecular do Instituto de Ciencias Biomedicas da Universidade de São Paulo, São Paulo, SP, Brazil
- Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
| | - Patricia Palmeira
- Laboratorio de Pediatria Clinica (LIM 36), Departamento de Pediatria, Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Alberto José da Silva Duarte
- Laboratorio de Investigacao Medica em Dermatologia e Imunodeficiencias (LIM 56), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Av. Dr. Eneas Carvalho de Aguiar, 470, Predio 2, 3º andar, Cerqueira Cesar, São Paulo, SP, CEP: 05403-000, Brazil
- Divisao de Laboratorio Central, Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Magda Carneiro-Sampaio
- Departamento de Pediatria, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Telma Miyuki Oshiro
- Laboratorio de Investigacao Medica em Dermatologia e Imunodeficiencias (LIM 56), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Av. Dr. Eneas Carvalho de Aguiar, 470, Predio 2, 3º andar, Cerqueira Cesar, São Paulo, SP, CEP: 05403-000, Brazil.
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8
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Mind the feline coronavirus: Comparison with SARS-CoV-2. Gene 2022; 825:146443. [PMID: 35337854 PMCID: PMC8938304 DOI: 10.1016/j.gene.2022.146443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 02/25/2022] [Accepted: 03/18/2022] [Indexed: 12/13/2022]
Abstract
Both feline coronavirus (FCoV) and SARS-CoV-2 are coronaviruses that infect cats and humans, respectively. However, cats have been shown to be susceptible to SARS-CoV-2, and FCoV also had been shown to infect human. To elucidate the relationship between FCoV and SARS-CoV-2, we highlight the main characteristics of the genome, the receptor usage, and the correlation of the receptor-binding domain (RBD) of spike proteins in FCoV and SARS-CoV-2. It is demonstrated that FCoV and SARS-CoV-2 are closely related to the main characteristics of the genome, receptor usage, and RBD of spike proteins with similar furin cleavage sites. In particular, the affinity of the conserved feline angiotensin-converting enzyme 2 (fACE2) receptor to the RBD of SARS-CoV-2 suggests that cats are susceptible to SARS-CoV-2. In addition, cross-species of coronaviruses between cats and humans or other domesticated animals are also discussed. This review sheds light on cats as potential intermediate hosts for SARS-CoV-2 transmission, and cross-species transmission or zoonotic infection of FCoV and SARS-CoV-2 between cats and humans was identified.
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Possible Cross-Reactivity of Feline and White-Tailed Deer Antibodies against the SARS-CoV-2 Receptor Binding Domain. J Virol 2022; 96:e0025022. [PMID: 35352999 PMCID: PMC9044950 DOI: 10.1128/jvi.00250-22] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In late 2019, a novel coronavirus began circulating within humans in central China. It was designated SARS-CoV-2 because of its genetic similarities to the 2003 SARS coronavirus (SARS-CoV). Now that SARS-CoV-2 has spread worldwide, there is a risk of it establishing new animal reservoirs and recombination with native circulating coronaviruses. To screen local animal populations in the United States for exposure to SARS-like coronaviruses, we developed a serological assay using the receptor binding domain (RBD) from SARS-CoV-2. SARS-CoV-2's RBD is antigenically distinct from common human and animal coronaviruses, allowing us to identify animals previously infected with SARS-CoV or SARS-CoV-2. Using an indirect enzyme-linked immunosorbent assay (ELISA) for SARS-CoV-2's RBD, we screened serum from wild and domestic animals for the presence of antibodies against SARS-CoV-2's RBD. Surprisingly prepandemic feline serum samples submitted to the University of Tennessee Veterinary Hospital were ∼50% positive for anti-SARS RBD antibodies. Some of these samples were serologically negative for feline coronavirus (FCoV), raising the question of the etiological agent generating anti-SARS-CoV-2 RBD cross-reactivity. We also identified several white-tailed deer from South Carolina with anti-SARS-CoV-2 antibodies. These results are intriguing, as cross-reactive antibodies toward SARS-CoV-2 RBD have not been reported to date. The etiological agent responsible for seropositivity was not readily apparent, but finding seropositive cats prior to the current SARS-CoV-2 pandemic highlights our lack of information about circulating coronaviruses in other species. IMPORTANCE We report cross-reactive antibodies from prepandemic cats and postpandemic South Carolina white-tailed deer that are specific for that SARS-CoV RBD. There are several potential explanations for this cross-reactivity, each with important implications to coronavirus disease surveillance. Perhaps the most intriguing possibility is the existence and transmission of an etiological agent (such as another coronavirus) with similarity to SARS-CoV-2's RBD region. However, we lack conclusive evidence of prepandemic transmission of a SARS-like virus. Our findings provide impetus for the adoption of a One Health Initiative focusing on infectious disease surveillance of multiple animal species to predict the next zoonotic transmission to humans and future pandemics.
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10
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Lebedin Y, Petukhov P, Maygurova V, Klyuchnikova P, Naidenko S. Occurrence of Spike Antigen Specific SARS-CoV-2 Antibodies in Pre-Pandemic Samples of Domestic Cats Raises New Questions. BIOL BULL+ 2022. [DOI: 10.1134/s1062359021150103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Dileepan M, Di D, Huang Q, Ahmed S, Heinrich D, Ly H, Liang Y. Seroprevalence of SARS-CoV-2 (COVID-19) exposure in pet cats and dogs in Minnesota, USA. Virulence 2021; 12:1597-1609. [PMID: 34125647 PMCID: PMC8205054 DOI: 10.1080/21505594.2021.1936433] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 05/20/2021] [Accepted: 05/24/2021] [Indexed: 01/13/2023] Open
Abstract
The COVID-19 pandemic caused by the coronavirus SARS-CoV-2 is continuing to spread globally. SARS-CoV-2 infections of feline and canine species have also been reported. However, it is not entirely clear to what extent natural SARS-CoV-2 infection of pet dogs and cats is in households. We have developed enzyme-linked immunosorbent assays (ELISAs) using recombinant SARS-CoV-2 nucleocapsid (N) protein and the receptor-binding-domain (RBD) of the spike protein, and the SARS-CoV-2 spike-pseudotyped vesicular stomatitis virus (VSV)-based neutralization assay to screen serum samples of 239 pet cats and 510 pet dogs in Minnesota in the early phase of the COVID-19 pandemic from mid-April to early June 2020 for evidence of SARS-CoV-2 exposures. A cutoff value was used to identify the seropositive samples in each experiment. The average seroprevalence of N- and RBD-specific antibodies in pet cats were 8% and 3%, respectively. Among nineteen (19) N-seropositive cat sera, fifteen (15) exhibited neutralizing activity and seven (7) were also RBD-seropositive. The N-based ELISA is also specific and does not cross react with antigens of common feline coronaviruses. In contrast, SARS-CoV-2 antibodies were detected at a very low percentage in pet dogs (~ 1%) and were limited to IgG antibodies against SARS-CoV-2 N protein with no neutralizing activities. Our results demonstrate that SARS-CoV-2 seropositive rates are higher in pet cats than in pet dogs in MN early in the pandemic and that SARS-CoV-2 N-specific IgG antibodies can detect SARS-CoV-2 infections in companion animals with higher levels of specificity and sensitivity than RBD-specific IgG antibodies in ELISA-based assays.
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Affiliation(s)
- Mythili Dileepan
- Department of Veterinary & Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, Twin Cities, USA
| | - Da Di
- Department of Veterinary & Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, Twin Cities, USA
| | - Qinfeng Huang
- Department of Veterinary & Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, Twin Cities, USA
| | - Shamim Ahmed
- Department of Veterinary & Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, Twin Cities, USA
| | - Daniel Heinrich
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Twin Cities, USA
| | - Hinh Ly
- Department of Veterinary & Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, Twin Cities, USA
| | - Yuying Liang
- Department of Veterinary & Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, Twin Cities, USA
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12
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Tang P, Cui E, Song Y, Yan R, Wang J. Porcine deltacoronavirus and its prevalence in China: a review of epidemiology, evolution, and vaccine development. Arch Virol 2021; 166:2975-2988. [PMID: 34524535 PMCID: PMC8440736 DOI: 10.1007/s00705-021-05226-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 07/16/2021] [Indexed: 11/29/2022]
Abstract
Porcine deltacoronavirus (PDCoV) is one of the most important enteropathogenic pathogens, and it causes enormous economic losses to the global commercial pork industry. PDCoV was initially reported in Hong Kong (China) in 2012 and subsequently emerged in swine herds with diarrhea in Ohio (USA) in 2014. Since then, it has spread to Canada, South Korea, mainland China, and several Southeast Asian countries. Information about the epidemiology, evolution, prevention, and control of PDCoV and its prevalence in China has not been comprehensively reported, especially in the last five years. This review is an update of current information on the general characteristics, epidemiology, geographical distribution, and evolutionary relationships, and the status of PDCoV vaccine development, focusing on the prevalence of PDCoV in China and vaccine research in particular. Together, this information will provide us with a greater understanding of PDCoV infection and will be helpful for establishing new strategies for controlling this virus worldwide.
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Affiliation(s)
- Pan Tang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Enhui Cui
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Yihong Song
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Ruoqian Yan
- Henan Centre for Animal Diseases Control and Prevention, Zhengzhou, China.
| | - Jingyu Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China.
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13
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Zhao S, Schuurman N, Li W, Wang C, Smit LAM, Broens EM, Wagenaar JA, van Kuppeveld FJM, Bosch BJ, Egberink H. Serologic Screening of Severe Acute Respiratory Syndrome Coronavirus 2 Infection in Cats and Dogs during First Coronavirus Disease Wave, the Netherlands. Emerg Infect Dis 2021; 27:1362-1370. [PMID: 33900184 PMCID: PMC8084487 DOI: 10.3201/eid2705.204055] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can infect many animal species, including minks, cats, and dogs. To gain insights into SARS-CoV-2 infections in cats and dogs, we developed and validated a set of serologic assays, including ELISA and virus neutralization. Evaluation of samples from animals before they acquired coronavirus disease and samples from cats roaming SARS-CoV-2–positive mink farms confirmed the suitability of these assays for specific antibody detection. Furthermore, our findings exclude SARS-CoV-2 nucleocapsid protein as an antigen for serologic screening of cat and dog samples. We analyzed 500 serum samples from domestic cats and dogs in the Netherlands during April–May 2020. We showed 0.4% of cats and 0.2% of dogs were seropositive. Although seroprevalence in cats and dogs that had unknown SARS-CoV-2 exposure was low during the first coronavirus disease wave, our data stress the need for development of continuous serosurveillance for SARS-CoV-2 in these 2 animal species.
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14
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Beatty JA, Hartmann K. Advances in Feline Viruses and Viral Diseases. Viruses 2021; 13:v13050923. [PMID: 34067533 PMCID: PMC8156448 DOI: 10.3390/v13050923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 05/14/2021] [Indexed: 02/07/2023] Open
Affiliation(s)
- Julia A. Beatty
- Department of Veterinary Clinical Sciences and Centre for Companion Animal Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University, Hong Kong, China
- Correspondence:
| | - Katrin Hartmann
- Medizinische Kleintierklinik, Centre for Clinical Veterinary Medicine, LMU Munich, 80539 Munich, Germany;
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15
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Donnik IM, Popov IV, Sereda SV, Popov IV, Chikindas ML, Ermakov AM. Coronavirus Infections of Animals: Future Risks to Humans. BIOL BULL+ 2021; 48:26-37. [PMID: 33679117 PMCID: PMC7917535 DOI: 10.1134/s1062359021010052] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/27/2020] [Accepted: 07/17/2020] [Indexed: 01/31/2023]
Abstract
Coronaviruses have tremendous evolutionary potential, and three major outbreaks of new human coronavirus infections have occurred in the recent history of humankind. In this paper, the patterns of occurrence of new zoonotic coronavirus infections and the role of bioveterinary control in preventing their potential outbreaks in the future are determined. The possibility of SARS-CoV-2 infection in companion animals is considered. Diverse human activities may trigger various interactions between animal species and their viruses, sometimes causing the emergence of new viral pathogens. In addition, the possibility of using probiotics for the control of viral infections in animals is discussed.
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Affiliation(s)
- I. M. Donnik
- Russian Academy of Sciences, 119991 Moscow, Russia
| | - Ig. V. Popov
- Don State Technical University, 344000 Rostov-on-Don, Russia ,Rostov State Medical University, 344022 Rostov-on-Don, Russia
| | - S. V. Sereda
- Don State Technical University, 344000 Rostov-on-Don, Russia
| | - Il. V. Popov
- Rostov State Medical University, 344022 Rostov-on-Don, Russia
| | - M. L. Chikindas
- Don State Technical University, 344000 Rostov-on-Don, Russia ,Health Promoting Naturals Laboratory, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, 08901 New Brunswick, NJ USA
| | - A. M. Ermakov
- Don State Technical University, 344000 Rostov-on-Don, Russia
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16
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Michelitsch A, Hoffmann D, Wernike K, Beer M. Occurrence of Antibodies against SARS-CoV-2 in the Domestic Cat Population of Germany. Vaccines (Basel) 2020; 8:E772. [PMID: 33348613 PMCID: PMC7766304 DOI: 10.3390/vaccines8040772] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/10/2020] [Accepted: 12/15/2020] [Indexed: 12/21/2022] Open
Abstract
Domestic cats (Felis catus) are popular companion animals that live in close contact with their human owners. Therefore, the risk of a trans-species spreading event between domestic cats and humans is ever-present. Shortly after the emergence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its rapid spread around the world, the role of domestic cats in the transmission cycle was questioned. In the present study, the first large-scale survey of antibody occurrence in the domestic cat population in Germany was conducted, in order to assess the incidence of naturally occurring human to cat transmission of SARS-CoV-2. A total of 920 serum samples, which were collected from April to September of 2020, were screened by an indirect multispecies ELISA. Positive samples were verified using an indirect immunofluorescence test (iIFT) and additionally tested for neutralizing antibodies. Furthermore, serum samples were screened for antibodies against feline coronavirus (FCoV), in order to rule out cross-reactivity in the described test systems. Overall, 0.69% (6/920) of serum samples were found to be positive for antibodies against SARS-CoV-2 by ELISA and iIFT. Two of these reactive sera also displayed neutralizing antibodies. No cross-reactivity with FCoV-specific antibodies was observed. The finding of SARS-CoV-2 antibody-positive serum samples in the domestic cat population of Germany, during a period when the incidence of human infection in the country was still rather low, indicates that human-to-cat transmission of SARS-CoV-2 happens, but there is no indication of SARS-CoV-2 circulation in cats.
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Affiliation(s)
| | | | - Kerstin Wernike
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, 17493 Greifswald–Insel Riems, Germany; (A.M.); (D.H.)
| | - Martin Beer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, 17493 Greifswald–Insel Riems, Germany; (A.M.); (D.H.)
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17
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Wendel S, Kutner JM, Machado R, Fontão‐Wendel R, Bub C, Fachini R, Yokoyama A, Candelaria G, Sakashita A, Achkar R, Hamerschlak N, Scuracchio P, Amaral M, Dal Ben M, Araujo D, Soares C, Camargo A, Kallás E, Durigon E, Reis LF, Rizzo LV. Screening for SARS-CoV-2 antibodies in convalescent plasma in Brazil: Preliminary lessons from a voluntary convalescent donor program. Transfusion 2020; 60:2938-2951. [PMID: 32935877 PMCID: PMC7756544 DOI: 10.1111/trf.16065] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/02/2020] [Accepted: 08/02/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) convalescent plasma (CCP) collection began in two Brazilian hospitals for treatment of severe/critical patients. METHODS AND MATERIALS Mild/moderate COVID-19 convalescents were selected as CCP donors after reverse transcription polymerase chain reaction (RT-PCR) confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and absence of symptoms for ≥14 days plus (a) age (18-60 years), body weight greater than 55 kg; (b) immunohematological studies; (c) no infectious markers of hepatitis B virus, hepatitis C virus, human immunodeficiency virus, human T-lymphotropic virus-1/2, Chagas and syphilis infection; (d) no HLA antibodies (multiparous); (e) second RT-PCR (nasopharyngeal swab and/or blood) negativity; (f) virus neutralization test (cytopathic effect-based virus neutralization test neutralizing antibody) and anti-nucleocapsid protein SARS-CoV-2 IgM, IgG, and IgA enzyme-linked immunosorbent assays. RESULTS Among 271 donors (41 females, 230 males), 250 presented with neutralizing antibodies. Final RT-PCR was negative on swab (77.0%) or blood (88.4%; P = .46). Final definition of RT-PCR was only defined at more than 28 days after full recovery in 59 of 174 (33.9%) RT-PCR -ve, and 25/69 RT-PCR +ve (36.2%; 13 between 35 and 48 days). Neutralizing antibody titers of 160 or greater were found in 63.6%. Correlation between IgG signal/cutoff of 5.0 or greater and neutralizing antibody of 160 or greater was 82.4%. Combination of final RT-PCR -ve with neutralizing antibody ≥160 was 41.3% (112/271). Serial plasma collection showed decline in neutralizing antibody titers and IgA levels (P < .05), probably denoting a "golden period" for CCP collection (≤28 days after joining the program); IgA might have an important role as neutralizing antibody. Donor's weight, days between disease onset and serial plasma collection, and IgG and IgM levels are important predictors for neutralizing antibody titer. CONCLUSIONS RT-PCR +ve cases are still detected in 36.2% within 28 to 48 days after recovery. High anti-nucleocapsid protein IgG levels may be used as a surrogate marker to neutralizing antibody.
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Affiliation(s)
| | | | - Rafael Machado
- Department of MicrobiologyInstitute of Biomedical Sciences, University of Sao PauloSão PauloBrazil
| | | | - Carolina Bub
- Hospital Israelita Albert Einstein Blood BankSão PauloBrazil
| | | | - Ana Yokoyama
- Hospital Israelita Albert Einstein Blood BankSão PauloBrazil
| | | | - Araci Sakashita
- Hospital Israelita Albert Einstein Blood BankSão PauloBrazil
| | - Ruth Achkar
- Hospital Sírio‐Libanês Blood BankSão PauloBrazil
| | | | | | | | | | - Danielle Araujo
- Department of MicrobiologyInstitute of Biomedical Sciences, University of Sao PauloSão PauloBrazil
| | - Camila Soares
- Department of MicrobiologyInstitute of Biomedical Sciences, University of Sao PauloSão PauloBrazil
| | | | - Esper Kallás
- Infectious Disease DepartmentUniversity of São Paulo Medical SchoolSão PauloBrazil
| | - Edison Durigon
- Department of MicrobiologyInstitute of Biomedical Sciences, University of Sao PauloSão PauloBrazil
| | | | - Luiz Vicente Rizzo
- Albert Einstein Jewish Institute for Education and ResearchSão PauloBrazil
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18
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Zhao S, Schuurman N, Tieke M, Quist B, Zwinkels S, van Kuppeveld FJM, de Haan CAM, Egberink H. Serological Screening of Influenza A Virus Antibodies in Cats and Dogs Indicates Frequent Infection with Different Subtypes. J Clin Microbiol 2020; 58:e01689-20. [PMID: 32878956 PMCID: PMC7587082 DOI: 10.1128/jcm.01689-20] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 08/31/2020] [Indexed: 12/17/2022] Open
Abstract
Influenza A viruses (IAVs) infect humans and a variety of other animal species. Infections with some subtypes of IAV were also reported in domestic cats and dogs. In addition to animal health implications, close contact between companion animals and humans also poses a potential risk of zoonotic IAV infections. In this study, serum samples from different cat and dog cohorts were analyzed for IAV antibodies against seven IAV subtypes, using three distinctive IAV-specific assays differing in IAV subtype-specific discriminatory power and sensitivity. Enzyme-linked immunosorbent assays against the complete hemagglutinin (HA) ectodomain or the HA1 domain were used, as well as a novel nanoparticle-based, virus-free hemagglutination inhibition assay. Using these three assays, we found cat and dog sera from different cohorts to be positive for antibodies against one or more IAV subtypes and/or strains. Cat and dog serum samples collected after the 2009 pandemic H1N1 outbreak exhibit much higher seropositivity against H1 compared to samples from before 2009. Cat sera, furthermore, displayed higher reactivity for avian IAVs than dog sera. Our findings show the added value of using complementary serological assays, which are based on reactivity with different numbers of HA epitopes, to study IAV antibody responses and for improved serosurveillance of IAV infections. We conclude that infection of cats and dogs with both human and avian IAVs of different subtypes is prevalent. These observations highlight the role of cats and dogs in IAV ecology and indicate the potential of these companion animals to give rise to novel (reassorted) viruses with increased zoonotic potential.
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Affiliation(s)
- Shan Zhao
- Virology Section, Infectious Diseases and Immunology Division, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Nancy Schuurman
- Virology Section, Infectious Diseases and Immunology Division, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Malte Tieke
- Virology Section, Infectious Diseases and Immunology Division, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Berit Quist
- Virology Section, Infectious Diseases and Immunology Division, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Steven Zwinkels
- Virology Section, Infectious Diseases and Immunology Division, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Frank J M van Kuppeveld
- Virology Section, Infectious Diseases and Immunology Division, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Cornelis A M de Haan
- Virology Section, Infectious Diseases and Immunology Division, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Herman Egberink
- Virology Section, Infectious Diseases and Immunology Division, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
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19
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Porcine deltacoronavirus nucleocapsid protein species-specifically suppressed IRF7-induced type I interferon production via ubiquitin-proteasomal degradation pathway. Vet Microbiol 2020; 250:108853. [PMID: 32992291 PMCID: PMC7834071 DOI: 10.1016/j.vetmic.2020.108853] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 09/08/2020] [Indexed: 12/26/2022]
Abstract
The emerging PDCoV broadly infects porcine, human and chicken cells in vitro. PDCoV N protein interacts with the IRF7 in a species-specific manner. PDCoV N protein induces the porcine IRF7 degradation via ubiquitin-proteasomal pathway. The mechanism of PDCoV N protein suppressing the porcine type I IFN is different from those by other CoVs, such as SARS-CoV, MERS-CoV and PEDV.
Coronaviruses (CoVs) is showing obvious interspecies transmission, such as the SARS-CoV, MERS-CoV and SARS-CoV-2. Here, the emerging porcine deltacoronavirus (PDCoV) strain, isolated from Shanghai, China, broadly infects porcine, human and chicken cells in vitro. Previously studies by our group and others have confirmed that PDCoV nucleocapsid (N) protein performs an important role in antagonizing retinoic acid-induced gene I-like receptor (RLR) activation. However, the mechanism of PDCoV N protein suppressing porcine type I IFN production remains unclear, especially the downstream of porcine RLR signaling pathway. In the present study, porcine IRF7 (poIRF7) was identified as the interaction protein of PDCoV N protein through LC-MS/MS. The poIRF7 (268-487aa) was the key region of binding PDCoV N protein. Although IRF7 is a conserved functional protein in species, the PDCoV N protein has been confirmed to interact with only poIRF7 and significantly decrease poIRF7-induced type I IFN production, but not human or chicken IRF7. Furthermore, PDCoV N protein can promote poIRF7 degradation via the ubiquitin-proteasome pathway, which directly increased the K6, K11, and K29-linked polyubiquitination of poIRF7. Lysine 359 of poIRF7 was a key site in PDCoV N protein inducing poIRF7 degradation. Taken together, our results reveal a novel mechanism that PDCoV N protein could species-specifically interact with poIRF7 and then promote its degradation to suppress porcine type I IFN production. The novel findings provide a new insight into PDCoV and other zoonotic coronavirus evading the innate immune response of different species.
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Sharun K, Sircar S, Malik YS, Singh RK, Dhama K. How close is SARS-CoV-2 to canine and feline coronaviruses? J Small Anim Pract 2020; 61:523-526. [PMID: 32785948 PMCID: PMC7436317 DOI: 10.1111/jsap.13207] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/22/2020] [Accepted: 07/02/2020] [Indexed: 11/30/2022]
Affiliation(s)
- K Sharun
- Division of Surgery, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
| | - S Sircar
- Division of Biological Standardization, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
| | - Y S Malik
- Division of Biological Standardization, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
| | - R K Singh
- ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
| | - K Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
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Jung K, Saif LJ, Wang Q. Porcine epidemic diarrhea virus (PEDV): An update on etiology, transmission, pathogenesis, and prevention and control. Virus Res 2020; 286:198045. [PMID: 32502552 PMCID: PMC7266596 DOI: 10.1016/j.virusres.2020.198045] [Citation(s) in RCA: 190] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 05/29/2020] [Accepted: 06/01/2020] [Indexed: 12/13/2022]
Abstract
Porcine epidemic diarrhea virus (PEDV), a member of the genus Alphacoronavirus in the family Coronaviridae, causes acute diarrhea and/or vomiting, dehydration and high mortality in neonatal piglets. Two different genogroups of PEDV, S INDEL [PEDV variant containing multiple deletions and insertions in the S1 subunit of the spike (S) protein, G1b] and non-S INDEL (G2b) strains were detected during the diarrheal disease outbreak in US swine in 2013-2014. Similar viruses are also circulating globally. Continuous improvement and update of biosecurity and vaccine strains and protocols are still needed to control and prevent PEDV infections worldwide. Although the non-S INDEL PEDV was highly virulent and the S INDEL PEDV caused milder disease, the latter has the capacity to cause illness in a high number of piglets on farms with low biosecurity and herd immunity. The main PEDV transmission route is fecal-oral, but airborne transmission via the fecal-nasal route may play a role in pig-to-pig and farm-to-farm spread. PEDV infection of neonatal pigs causes fecal virus shedding (alongside frequent detection of PEDV RNA in the nasal cavity), acute viremia, severe atrophic enteritis (mainly jejunum and ileum), and increased pro-inflammatory and innate immune responses. PEDV-specific IgA effector and memory B cells in orally primed sows play a critical role in sow lactogenic immunity and passive protection of piglets. This review focuses on the etiology, transmission, pathogenesis, and prevention and control of PEDV infection.
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Affiliation(s)
- Kwonil Jung
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Department of Veterinary Preventive Medicine, The Ohio State University, Wooster, OH, USA.
| | - Linda J Saif
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Department of Veterinary Preventive Medicine, The Ohio State University, Wooster, OH, USA.
| | - Qiuhong Wang
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Department of Veterinary Preventive Medicine, The Ohio State University, Wooster, OH, USA.
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Development and Validation of a S1 Protein-Based ELISA for the Specific Detection of Antibodies against Equine Coronavirus. Viruses 2019; 11:v11121109. [PMID: 31801275 PMCID: PMC6950238 DOI: 10.3390/v11121109] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/26/2019] [Accepted: 11/29/2019] [Indexed: 02/06/2023] Open
Abstract
Equine coronavirus (ECoV) is considered to be involved in enteric diseases in foals. Recently, several outbreaks of ECoV infection have also been reported in adult horses from the USA, France and Japan. Epidemiological studies of ECoV infection are still limited, and the seroprevalence of ECoV infection in Europe is unknown. In this study, an indirect enzyme-linked immunosorbent assay (ELISA) method utilizing ECoV spike S1 protein was developed in two formats, and further validated by analyzing 27 paired serum samples (acute and convalescent sera) from horses involved in an ECoV outbreak and 1084 sera of horses with unknown ECoV exposure. Both formats showed high diagnostic accuracy compared to virus neutralization (VN) assay. Receiver-operating characteristic (ROC) analyses were performed to determine the best cut-off values for both ELISA formats, assuming a test specificity of 99%. Employing the developed ELISA method, we detected seroconversion in 70.4% of horses from an ECoV outbreak. Among the 1084 horse sera, seropositivity varied from 25.9% (young horses) to 82.8% (adult horses) in Dutch horse populations. Further, sera of Icelandic horses were included in this study and a significant number of sera (62%) were found to be positive. Overall, the results demonstrated that the ECoV S1-based ELISA has reliable diagnostic performance compared to the VN assay and is a useful assay to support seroconversion in horses involved with ECoV outbreaks and to estimate ECoV seroprevalence in populations of horses.
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