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Thieulent CJ, Carossino M, Peak L, Strother K, Wolfson W, Balasuriya UBR. Development and Validation of a Panel of One-Step Four-Plex qPCR/RT-qPCR Assays for Simultaneous Detection of SARS-CoV-2 and Other Pathogens Associated with Canine Infectious Respiratory Disease Complex. Viruses 2023; 15:1881. [PMID: 37766287 PMCID: PMC10535912 DOI: 10.3390/v15091881] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 08/28/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Canine infectious respiratory disease complex (CIRDC) is the primary cause of respiratory disease in the canine population and is caused by a wide array of viruses and bacterial pathogens with coinfections being common. Since its recognition in late 2019, Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) has been reported to cause respiratory disease in dogs. Therefore, the rapid detection and differentiation of SARS-CoV-2 from other common viral and bacterial agents is critical from a public health standpoint. Here, we developed and validated a panel of four one-step multiplex qPCR/RT-qPCR assays for the detection and identification of twelve pathogens associated with CIRDC (canine adenovirus-2, canine distemper virus, canine herpesvirus-1, canine influenza A virus, canine parainfluenza virus, canine pneumovirus, canine respiratory coronavirus, SARS-CoV-2, Bordetella bronchiseptica, Streptococcus equi subsp. zooepidemicus, Mycoplasma cynos, and M. canis), as well as the identification of three main CIV subtypes (i.e., H3N2, H3N8, and H1N1). All developed assays demonstrated high specificity and analytical sensitivity. This panel was used to test clinical specimens (n = 76) from CIRDC-suspected dogs. M. canis, M. cynos, and CRCoV were the most frequently identified pathogens (30.3%, 25.0%, and 19.7% of samples, respectively). The newly emerging pathogens CPnV and SARS-CoV-2 were detected in 5.3% of samples and coinfections were identified in 30.3%. This new multiplex qPCR/RT-qPCR panel is the most comprehensive panel developed thus far for identifying CIRDC pathogens, along with SARS-CoV-2.
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Affiliation(s)
- Côme J. Thieulent
- Louisiana Animal Disease Diagnostic Laboratory, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA; (C.J.T.); (M.C.); (L.P.); (K.S.)
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Mariano Carossino
- Louisiana Animal Disease Diagnostic Laboratory, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA; (C.J.T.); (M.C.); (L.P.); (K.S.)
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Laura Peak
- Louisiana Animal Disease Diagnostic Laboratory, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA; (C.J.T.); (M.C.); (L.P.); (K.S.)
| | - Keith Strother
- Louisiana Animal Disease Diagnostic Laboratory, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA; (C.J.T.); (M.C.); (L.P.); (K.S.)
| | - Wendy Wolfson
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA;
| | - Udeni B. R. Balasuriya
- Louisiana Animal Disease Diagnostic Laboratory, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA; (C.J.T.); (M.C.); (L.P.); (K.S.)
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
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2
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Kovalenko G, Galat M, Ishchenko L, Halka I. Serological Evidence for Influenza A Viruses Among Domestic Dogs and Cats in Kyiv, Ukraine. Vector Borne Zoonotic Dis 2021; 21:483-489. [PMID: 33877900 PMCID: PMC8252905 DOI: 10.1089/vbz.2020.2746] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Influenza A viruses (IAV) are zoonotic pathogens that can cause significant illness in wild and domestic animals, and humans. IAV can infect a broad range of avian and mammalian species, depending on subtype, and avian IAV can be moved over relatively long distances by migratory birds. Although spillover infections from wildlife or domestic animals to humans are an important part of the transmission cycle that can drive outbreaks, the relevance of companion animals, specifically dogs and cats, is not fully understood. A novel pandemic H1N1 reassortant (H1N1pdm09) emerged from swine in 2009, infecting humans, and wild and domestic animals worldwide. During a 2016 human influenza outbreak in Kyiv, subtype H1N1pdm09 predominated and was associated with severe disease and deaths; however, H3N2 and influenza B viruses were also detected. No case of avian influenza in humans was detected. To investigate potential involvement of companion animals, animals in a veterinary hospital (116 cats and 88 dogs) were randomly selected, and sera were tested using a commercially available IAV nucleoprotein enzyme-linked immunosorbent assay. Twelve of 203 serum samples were positive for influenza antibodies (5.7% of dogs and 6.08% cats). These are the first data to demonstrate influenza A infection of pets in Ukraine, highlighting the potential risk of infection of companion animals from close contact with humans.
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Affiliation(s)
- Ganna Kovalenko
- Institute of Veterinary Medicine, National Academy of Agrarian Sciences of Ukraine, Kyiv, Ukraine.,University of Alaska Anchorage, Anchorage, Alaska, USA
| | - Maryna Galat
- Faculty of Veterinary Medicine, National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine
| | - Lyudmila Ishchenko
- Ukrainian Laboratory of Quality and Safety of Agricultural Products, National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine
| | - Ihor Halka
- Institute of Veterinary Medicine, National Academy of Agrarian Sciences of Ukraine, Kyiv, Ukraine
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3
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Wasik BR, Voorhees IE, Parrish CR. Canine and Feline Influenza. Cold Spring Harb Perspect Med 2021; 11:cshperspect.a038562. [PMID: 31871238 PMCID: PMC7778219 DOI: 10.1101/cshperspect.a038562] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Influenza virus infections of carnivores-primarily in dogs and in large and small cats-have been repeatedly observed to be caused by a number of direct spillovers of avian viruses or in infections by human or swine viruses. In addition, there have also been prolonged epizootics of an H3N8 equine influenza virus in dogs starting around 1999, of an H3N2 avian influenza virus in domestic dog populations in Asia and in the United States that started around 2004, and an outbreak of an avian H7N2 influenza virus among cats in an animal shelter in the United States in 2016. The impact of influenza viruses in domesticated companion animals and their zoonotic or panzootic potential poses significant questions for veterinary and human health.
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4
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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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5
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Jurado-Tarifa E, Cano-Terriza D, Daly JM, Arenas A, García-Bocanegra I. Serosurvey of pandemic H1N1 influenza A virus in dogs in Andalusia (southern Spain). Zoonoses Public Health 2020; 67:869-875. [PMID: 32772511 DOI: 10.1111/zph.12758] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 05/23/2020] [Accepted: 07/14/2020] [Indexed: 11/28/2022]
Abstract
In April 2009, a new influenza A virus (IAV) subtype (A(H1N1)pdm09) spread worldwide and triggered the first human influenza pandemic of the 21st century. Since then, exposure to the pandemic H1N1 IAV has been confirmed in different animal species. Serological evidence and clinical infection with A(H1N1)pdm09 have been reported in canines, but the information available about the role of dogs in the epidemiology of this IAV subtype is still very limited in Europe. A cross-sectional study was carried out to determine the seroprevalence of A(H1N1)pdm09 in dogs in southern Spain, a region with endemic seasonal circulation in human. Sera from 750 companion dogs were collected during the period 2013-2016. Antibodies against pandemic H1N1 IAV were analysed using the haemagglutination inhibition test. Positive samples were also tested by single radial haemolysis assay. Seropositivity was only confirmed by both methods in one (0.13%; 95% CI: 0.00-0.38) adult animal sampled in 2013. To the best of the authors' knowledge, this is the first report of A(H1N1)pdm09 exposure in dogs in Spain. The low seroprevalence obtained indicates a limited exposure history to A(H1N1)pdm09 IAV in dogs in this country and suggests a low risk of transmission of this zoonotic IAV subtype between humans and dogs.
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Affiliation(s)
- Estefanía Jurado-Tarifa
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Córdoba-Agrifood Excellence International Campus (ceiA3), Córdoba, Spain
| | - David Cano-Terriza
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Córdoba-Agrifood Excellence International Campus (ceiA3), Córdoba, Spain
| | - Janet M Daly
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, UK
| | - Antonio Arenas
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Córdoba-Agrifood Excellence International Campus (ceiA3), Córdoba, Spain
| | - Ignacio García-Bocanegra
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Córdoba-Agrifood Excellence International Campus (ceiA3), Córdoba, Spain
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6
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Kwasnik M, Smreczak M, Rola J, Urbaniak K, Rozek W. Serologic investigation of influenza A virus infection in dogs in Poland. J Vet Diagn Invest 2020; 32:420-422. [PMID: 32207372 DOI: 10.1177/1040638720913526] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The 2 predominant circulating subtypes of influenza A virus in the dog population, equine-origin H3N8 and avian-origin H3N2, constitute a potential zoonotic risk. We determined the prevalence of influenza A antibodies in 496 dogs in Poland and found 2.21% of sera positive by commercial ELISA. Hemagglutination inhibition (HI) assays indicated 7.25% of sera positive using equine H3N8, swine H3N2, and pandemic H1N1 antigens, with the most frequently detected immune response being to H3N2. Considering interspecies transfer, reassortment ability, and close contact between dogs and humans, infections of dogs with influenza A virus should be monitored.
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Affiliation(s)
- Malgorzata Kwasnik
- Departments of Virology (Kwasnik, Smreczak, Rola, Rozek), National Veterinary Research Institute, Pulawy, Poland.,Swine Diseases (Urbaniak), National Veterinary Research Institute, Pulawy, Poland
| | - Marcin Smreczak
- Departments of Virology (Kwasnik, Smreczak, Rola, Rozek), National Veterinary Research Institute, Pulawy, Poland.,Swine Diseases (Urbaniak), National Veterinary Research Institute, Pulawy, Poland
| | - Jerzy Rola
- Departments of Virology (Kwasnik, Smreczak, Rola, Rozek), National Veterinary Research Institute, Pulawy, Poland.,Swine Diseases (Urbaniak), National Veterinary Research Institute, Pulawy, Poland
| | - Kinga Urbaniak
- Departments of Virology (Kwasnik, Smreczak, Rola, Rozek), National Veterinary Research Institute, Pulawy, Poland.,Swine Diseases (Urbaniak), National Veterinary Research Institute, Pulawy, Poland
| | - Wojciech Rozek
- Departments of Virology (Kwasnik, Smreczak, Rola, Rozek), National Veterinary Research Institute, Pulawy, Poland.,Swine Diseases (Urbaniak), National Veterinary Research Institute, Pulawy, Poland
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7
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Day MJ, Carey S, Clercx C, Kohn B, MarsilIo F, Thiry E, Freyburger L, Schulz B, Walker DJ. Aetiology of Canine Infectious Respiratory Disease Complex and Prevalence of its Pathogens in Europe. J Comp Pathol 2020; 176:86-108. [PMID: 32359641 PMCID: PMC7103302 DOI: 10.1016/j.jcpa.2020.02.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/10/2020] [Accepted: 02/09/2020] [Indexed: 12/24/2022]
Abstract
The canine infectious respiratory disease complex (CIRDC) is an endemic worldwide syndrome involving multiple viral and bacterial pathogens. Traditionally, Bordetella bronchiseptica (Bb), canine adenovirus type 2 (CAV-2), canine distemper virus (CDV), canine herpesvirus (CHV) and canine parainfluenza virus (CPiV) were considered the major causative agents. Lately, new pathogens have been implicated in the development of CIRDC, namely canine influenza virus (CIV), canine respiratory coronavirus (CRCoV), canine pneumovirus (CnPnV), Mycoplasma cynos and Streptococcus equi subspecies zooepidemicus. To better understand the role of the different pathogens in the development of CIRDC and their epidemiological relevance in Europe, prevalence data were collected from peer-reviewed publications and summarized. Evidence of exposure to Bb is frequently found in healthy and diseased dogs and client-owned dogs are as likely to be infected as kennelled dogs. Co-infections with viral pathogens are common. The findings confirm that Bb is an important cause of CIRDC in Europe. CAV-2 and CDV recovery rates from healthy and diseased dogs are low and the most likely explanation for this is control through vaccination. Seroconversion to CHV can be demonstrated following CIRDC outbreaks and CHV has been detected in the lower respiratory tract of diseased dogs. There is some evidence that CHV is not a primary cause of CIRDC, but opportunistically re-activates at the time of infection and exacerbates the disease. The currently available data suggest that CIV is, at present, neither a prevalent nor a significant pathogen in Europe. CPiV remains an important pathogen in CIRDC and facilitates co-infection with other viral and bacterial pathogens. CnPnV and CRCoV are important new elements in the aetiology of CIRDC and spread particularly well in multi-dog establishments. M. cynos is common in Europe and is more likely to occur in younger and kennelled dogs. This organism is frequently found together with other CIRDC pathogens and is significantly associated with more severe respiratory signs. S. zooepidemicus infection is not common and appears to be a particular problem in kennels. Protective immunity against respiratory diseases is rarely complete, and generally only a reduction in clinical signs and excretion of pathogen can be achieved through vaccination. However, even vaccines that only reduce and do not prevent infection carry epidemiological advantages. They reduce spread, increase herd immunity and decrease usage of antimicrobials. Recommending vaccination of dogs against pathogens of CIRDC will directly provide epidemiological advantages to the population and the individual dog.
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Affiliation(s)
- M J Day
- School of Veterinary and Life Sciences, Murdoch University, Murdoch, Western Australia and Bristol Veterinary School, University of Bristol, Langford, UK.
| | - S Carey
- College of Veterinary Medicine, Michigan State University, USA
| | - C Clercx
- Faculty of Veterinary Medicine, Liège University, Liège, Belgium
| | - B Kohn
- Faculty of Veterinary Medicine, Freie Universität Berlin, Berlin, Germany
| | - F MarsilIo
- Faculty of Veterinary Medicine, University of Teramo, Teramo, Italy
| | - E Thiry
- Faculty of Veterinary Medicine, Liège University, Liège, Belgium
| | - L Freyburger
- Université de Lyon, VetAgro Sup, Agressions Pulmonaires et Circulatoires dans le Sepsis, Marcy l'Etoile and La Compagnie des Animaux, SantéVet, Lyon, France
| | - B Schulz
- Ludwig-Maximillian-University of Munich, Munich, Germany
| | - D J Walker
- Anderson Moores Veterinary Specialists, Winchester, Hampshire, UK
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8
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Fu C, Ye S, Liu Y, Li S. Role of CARD Region of MDA5 Gene in Canine Influenza Virus Infection. Viruses 2020; 12:v12030307. [PMID: 32178353 PMCID: PMC7150756 DOI: 10.3390/v12030307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/25/2020] [Accepted: 03/09/2020] [Indexed: 12/24/2022] Open
Abstract
MDA5 belongs to the RIG-I-like receptor family, which is involved in innate immunity. During viral infection, MDA5 generates an antiviral response by recognizing the ligand to activate interferon. However, the role and mechanism of MDA5 in canine influenza virus (CIV) infection are unclear. To understand the mechanism of canine MDA5-mediated innate immunity during CIV infection, we detected the distribution of MDA5 in beagles, and the structural prediction showed that MDA5 was mainly composed of a CARD domain, RD domain, and DExD/H helix structure. Moreover, we found that MDA5 inhibits CIV replication. Furthermore, in the dual luciferase assay, we revealed that the CARD region of MDA5 strongly activated the IFN-β promoter and mainly transmitted signals through the CARD region. Overexpression of the CARD region of MDA5 revealed that the MDA5-mediated signaling pathway could transmit signals by activating the IRF3/NF-κB and IRF3 promoters, promoting the expression of antiviral proteins and cytokine release, thereby inhibiting CIV replication. Upon silencing of MDA5, cytokine production decreased, while the replication ability of CIV was increased. Thus, this study revealed a novel mechanism by which MDA5 mediated CIV infection and provided new avenues for the development of antiviral strategies.
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Affiliation(s)
- Cheng Fu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (C.F.); (S.Y.); (Y.L.)
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Technological Engineering Research Center for Pet, Guangzhou 510642, China
| | - Shaotang Ye
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (C.F.); (S.Y.); (Y.L.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Technological Engineering Research Center for Pet, Guangzhou 510642, China
| | - Yongbo Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (C.F.); (S.Y.); (Y.L.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Technological Engineering Research Center for Pet, Guangzhou 510642, China
| | - Shoujun Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (C.F.); (S.Y.); (Y.L.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Technological Engineering Research Center for Pet, Guangzhou 510642, China
- Correspondence:
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9
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Sangkachai N, Thongdee M, Chaiwattanarungruengpaisan S, Buddhirongawatr R, Chamsai T, Poltep K, Wiriyarat W, Paungpin W. Serological evidence of influenza virus infection in captive wild felids, Thailand. J Vet Med Sci 2019; 81:1341-1347. [PMID: 31341136 PMCID: PMC6785624 DOI: 10.1292/jvms.19-0233] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Influenza virus is known to affect wild felids. To explore the prevalence of influenza viruses in these animal species, 196 archival sera from 5 felid species including Panthera tigris (N=147), Prionailurus viverrinus (N=35), Panthera leo (N=5), Pardofelis temminckii (N=8) and Neofelis nebulosa (N=1) collected between 2011 and 2015 in 10 provinces of Thailand were determined for the presence of antibody to avian and human influenza viruses. Blocking enzyme-linked immunosorbent (ELISA) assay and hemagglutination inhibition (HI) assay were employed as the screening tests, which the serum samples with HI antibody titers ≥20 were further confirmed by cytopathic effect/hemagglutination based-microneutralization (CPE/HA-based microNT) test. Based on HI and microNT assays, the seropositive rates of low pathogenic avian influenza (LPAI) H5 virus, highly pathogenic avian influenza (HPAI) H5 virus and human H1 virus were 1.53% (3/196), 2.04% (4/196) and 6.63% (13/196), respectively. In addition, we also found antibody against both LPAI H5 virus and HPAI H5 virus in 2 out of 196 tested sera (1.02%). Evidences of influenza virus infection were found in captive P. tigris in Kanchanaburi, Nakhon Sawan and Ratchaburi provinces of Thailand. The findings of our study highlights the need of a continuous active surveillance program of influenza viruses in wild felid species.
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Affiliation(s)
- Nareerat Sangkachai
- The Monitoring and Surveillance Center for Zoonotic Diseases in Wildlife and Exotic Animals, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Metawee Thongdee
- The Monitoring and Surveillance Center for Zoonotic Diseases in Wildlife and Exotic Animals, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Somjit Chaiwattanarungruengpaisan
- The Monitoring and Surveillance Center for Zoonotic Diseases in Wildlife and Exotic Animals, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Ruangrat Buddhirongawatr
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Tatiyanuch Chamsai
- The Monitoring and Surveillance Center for Zoonotic Diseases in Wildlife and Exotic Animals, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Kanaporn Poltep
- The Monitoring and Surveillance Center for Zoonotic Diseases in Wildlife and Exotic Animals, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Witthawat Wiriyarat
- The Monitoring and Surveillance Center for Zoonotic Diseases in Wildlife and Exotic Animals, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Weena Paungpin
- The Monitoring and Surveillance Center for Zoonotic Diseases in Wildlife and Exotic Animals, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, 73170, Thailand
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10
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Tangwangvivat R, Chanvatik S, Charoenkul K, Chaiyawong S, Janethanakit T, Tuanudom R, Prakairungnamthip D, Boonyapisitsopa S, Bunpapong N, Amonsin A. Evidence of pandemic H1N1 influenza exposure in dogs and cats, Thailand: A serological survey. Zoonoses Public Health 2018; 66:349-353. [PMID: 30552750 DOI: 10.1111/zph.12551] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/07/2018] [Accepted: 11/17/2018] [Indexed: 11/30/2022]
Abstract
Influenza A virus causes respiratory disease in both humans and animals. In this study, a survey of influenza A antibodies in domestic dogs and cats was conducted in 47 animal shelters in 19 provinces of Thailand from September 2011 to September 2014. One thousand and eleven serum samples were collected from 932 dogs and 79 cats. Serum samples were tested for influenza A antibodies using a multi-species competitive NP-ELISA and haemagglutination inhibition (HI) assay. The NP-ELISA results showed that 0.97% (9/932) of dogs were positive, but all cat samples were negative. The HI test against pandemic H1N1, human H3N2 and canine H3N2 showed that 0.64% (6/932) and 1.20% (1/79) of dogs and cats were positive, respectively. It is noted that all six serum samples (5 dogs and 1 cat) had antibodies against pandemic H1N1. In summary, a serological survey revealed the evidence of pandemic H1N1 influenza exposure in both dogs and cats in the shelters in Thailand.
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Affiliation(s)
- Ratanaporn Tangwangvivat
- Center of Excellences for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Sunicha Chanvatik
- Center of Excellences for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Kamonpan Charoenkul
- Center of Excellences for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Supassama Chaiyawong
- Center of Excellences for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Taveesak Janethanakit
- Center of Excellences for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Ranida Tuanudom
- Center of Excellences for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Duangduean Prakairungnamthip
- Center of Excellences for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Supanat Boonyapisitsopa
- Center of Excellences for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Napawan Bunpapong
- Center of Excellences for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Alongkorn Amonsin
- Center of Excellences for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
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11
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Multi-year serological evaluation of three viral agents in the Adélie Penguin (Pygoscelis adeliae) on Ross Island, Antarctica. Polar Biol 2018. [DOI: 10.1007/s00300-018-2342-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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12
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Comparative pathogenesis of H3N2 canine influenza virus in beagle dogs challenged by intranasal and intratracheal inoculation. Virus Res 2018; 255:147-153. [PMID: 29860092 DOI: 10.1016/j.virusres.2018.05.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 05/21/2018] [Accepted: 05/29/2018] [Indexed: 01/18/2023]
Abstract
As important companion animals, dogs may serve as intermediate hosts for transmitting influenza virus to humans. However, knowledge regarding H3N2 canine influenza virus (CIV) pathogenicity is not comprehensive, which directly affects the animal models of pathogenicity in H3N2 CIV vaccine research. Here, to assess H3N2 CIV pathogenicity, we utilized 30 ten-week-old purpose-bred beagles intratracheally or intranasally inoculated with 106 50% egg-infectious dose. Intratracheal inoculation was more virulent to dogs than intranasal inoculation as shown by lung pathology score, histopathological changes, clinical symptoms, and body temperature. More intense virus replication was observed in the upper and lower respiratory tracts by intratracheal than intranasal inoculation according to nasal swabs, various organ virus titers, and antigen expression. These results may enhance the H3N2 CIV infection model, providing a more complete experimental basis for studying intrinsic H3N2 CIV pathogenic mechanism, and also serving a reference role for CIV prevention and treatment.
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13
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Fu C, Luo J, Ye S, Yuan Z, Li S. Integrated Lung and Tracheal mRNA-Seq and miRNA-Seq Analysis of Dogs with an Avian-Like H5N1 Canine Influenza Virus Infection. Front Microbiol 2018; 9:303. [PMID: 29556219 PMCID: PMC5844969 DOI: 10.3389/fmicb.2018.00303] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 02/09/2018] [Indexed: 12/12/2022] Open
Abstract
Avian-like H5N1 canine influenza virus (CIV) causes severe respiratory infections in dogs. However, the mechanism underlying H5N1 CIV infection in dogs is unknown. The present study aimed to identify differentially expressed miRNAs and mRNAs in the lungs and trachea in H5N1 CIV-infected dogs through a next-generation sequencing-based method. Eighteen 40-day-old beagles were inoculated intranasally with CIV, A/canine/01/Guangdong/2013 (H5N1) at a tissue culture infectious dose 50 (TCID50) of 106, and lung and tracheal tissues were harvested at 3 and 7 d post-inoculation. The tissues were processed for miRNA and mRNA analysis. By means of miRNA-gene expression integrative negative analysis, we found miRNA–mRNA pairs. Lung and trachea tissues showed 138 and 135 negative miRNA–mRNA pairs, respectively. One hundred and twenty negative miRNA–mRNA pairs were found between the different tissues. In particular, pathways including the influenza A pathway, chemokine signaling pathways, and the PI3K-Akt signaling pathway were significantly enriched in all groups in responses to virus infection. Furthermore, dysregulation of miRNA and mRNA expression was observed in the respiratory tract of H5N1 CIV-infected dogs and notably, TLR4 (miR-146), NF-κB (miR-34c) and CCL5 (miR-335), CCL10 (miR-8908-5p), and GNGT2 (miR-122) were found to play important roles in regulating pathways that resist virus infection. To our knowledge, the present study is the first to analyze miRNA and mRNA expression in H5N1 CIV-infected dogs; furthermore, the present findings provide insights into the molecular mechanisms underlying influenza virus infection.
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Affiliation(s)
- Cheng Fu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou, China.,Guangdong Technological Engineering Research Center for Pet, Guangzhou, China
| | - Jie Luo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou, China.,Guangdong Technological Engineering Research Center for Pet, Guangzhou, China
| | - Shaotang Ye
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou, China.,Guangdong Technological Engineering Research Center for Pet, Guangzhou, China
| | - Ziguo Yuan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou, China
| | - Shoujun Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou, China.,Guangdong Technological Engineering Research Center for Pet, Guangzhou, China
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14
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Mitchell JA, Cardwell JM, Leach H, Walker CA, Le Poder S, Decaro N, Rusvai M, Egberink H, Rottier P, Fernandez M, Fragkiadaki E, Shields S, Brownlie J. European surveillance of emerging pathogens associated with canine infectious respiratory disease. Vet Microbiol 2017; 212:31-38. [PMID: 29173585 PMCID: PMC7117498 DOI: 10.1016/j.vetmic.2017.10.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 10/18/2017] [Accepted: 10/25/2017] [Indexed: 12/31/2022]
Abstract
The largest study of its kind in the field to date, including high-risk kennelled dogs, and for the first time, pet dogs and dogs from other cohorts. A clearly identifiable link between disease and the emerging pathogens: canine respiratory coronavirus and canine pneumovirus. Provides, substantial evidence of CIRD and the circulation of the novel pathogens studied in pet dogs, and dogs from other cohorts. Demonstrates the role and limitations of current vaccine strategies in managing CIRD outbreaks, and the need for including emerging pathogens.
Canine infectious respiratory disease (CIRD) is a major cause of morbidity in dogs worldwide, and is associated with a number of new and emerging pathogens. In a large multi-centre European study the prevalences of four key emerging CIRD pathogens; canine respiratory coronavirus (CRCoV), canine pneumovirus (CnPnV), influenza A, and Mycoplasma cynos (M. cynos); were estimated, and risk factors for exposure, infection and clinical disease were investigated. CIRD affected 66% (381/572) of the dogs studied, including both pet and kennelled dogs. Disease occurrence and severity were significantly reduced in dogs vaccinated against classic CIRD agents, canine distemper virus (CDV), canine adenovirus 2 (CAV-2) and canine parainfluenza virus (CPIV), but substantial proportions (65.7%; 201/306) of vaccinated dogs remained affected. CRCoV and CnPnV were highly prevalent across the different dog populations, with overall seropositivity and detection rates of 47% and 7.7% for CRCoV, and 41.7% and 23.4% for CnPnV, respectively, and their presence was associated with increased occurrence and severity of clinical disease. Antibodies to CRCoV had a protective effect against CRCoV infection and more severe clinical signs of CIRD but antibodies to CnPnV did not. Involvement of M. cynos and influenza A in CIRD was less apparent. Despite 45% of dogs being seropositive for M. cynos, only 0.9% were PCR positive for M. cynos. Only 2.7% of dogs were seropositive for Influenza A, and none were positive by PCR.
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Affiliation(s)
- Judy A Mitchell
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, UK.
| | - Jacqueline M Cardwell
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, UK.
| | - Heather Leach
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, UK.
| | - Caray A Walker
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, UK.
| | - Sophie Le Poder
- ENVA, University of Paris-Est, UMR 1161 Virologie, 94704 Maisons-Alfort, France; INRA, UMR 1161 Virologie, 94704 Maisons-Alfort, France; ANSES, Laboratoire de santé animale, UMR 1161 Virologie, 94704 Maisons Alfort, France.
| | - Nicola Decaro
- University of Bari, Department of Veterinary Medicine, Strada Provinciale per Casamassima Km 3, 70010 Valenzano (Bari), Italy.
| | - Miklos Rusvai
- University of Veterinary Medicine, Department of Pathology, Istvan u. 2, 1078 Budapest, Hungary.
| | - Herman Egberink
- University of Utrecht, Department of Infectious Diseases and Immunology, Yalelaan 1, 3584 CL, Utrecht, Netherlands.
| | - Peter Rottier
- University of Utrecht, Department of Infectious Diseases and Immunology, Yalelaan 1, 3584 CL, Utrecht, Netherlands.
| | - Mireia Fernandez
- Autonomous University of Barcelona, Hospital Clinic Veterinari, Universitat Automa de Barcelona, 08193 Bellaterra, Cerdanyola del Valles, Spain.
| | - Eirini Fragkiadaki
- Agricultural University of Athens, Faculty of Animal Science and Aquaculture, 75 Iera Odos str., 118 55, Athens, Greece.
| | - Shelly Shields
- Zoetis, Global Biologics Research-Companion Animals/Equine, 333 Portage Street, Kalamazoo, MI 49007, USA.
| | - Joe Brownlie
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, UK.
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15
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Ibrahim M, Ali A, Daniels JB, Lee CW. Post-pandemic seroprevalence of human influenza viruses in domestic cats. J Vet Sci 2017; 17:515-521. [PMID: 27030198 PMCID: PMC5204029 DOI: 10.4142/jvs.2016.17.4.515] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Revised: 01/22/2016] [Accepted: 03/04/2016] [Indexed: 11/20/2022] Open
Abstract
The continuous exposure of cats to diverse influenza viruses raises the concern of a potential role of cats in the epidemiology of these viruses. Our previous seroprevalence study of domestic cat sera collected during the 2009 H1N1 pandemic wave (September 2009-September 2010) revealed a high prevalence of pandemic H1N1, as well as seasonal H1N1 and H3N2 human flu virus infection (22.5%, 33.0%, and 43.5%, respectively). In this study, we extended the serosurvey of influenza viruses in cat sera collected post-pandemic (June 2011-August 2012). A total of 432 cat sera were tested using the hemagglutination inhibition assay. The results showed an increase in pandemic H1N1 prevalence (33.6%) and a significant reduction in both seasonal H1N1 and H3N2 prevalence (10.9% and 17.6%, respectively) compared to our previous survey conducted during the pandemic wave. The pandemic H1N1 prevalence in cats showed an irregular seasonality pattern in the post-pandemic phase. Pandemic H1N1 reactivity was more frequent among female cats than male cats. In contrast to our earlier finding, no significant association between clinical respiratory disease and influenza virus infection was observed. Our study highlights a high susceptibility among cats to human influenza virus infection that is correlated with influenza prevalence in the human population.
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Affiliation(s)
- Mahmoud Ibrahim
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH 44691, USA.,Department of Birds and Rabbit Medicine, Faculty of Veterinary Medicine, University of Sadat City, Menoufiya 32897, Egypt
| | - Ahmed Ali
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH 44691, USA.,Department of Poultry Diseases, Faculty of Veterinary Medicine, Beni-Suef University, Beni Suef 62511, Egypt
| | - Joshua B Daniels
- Department of Veterinary Clinical Science, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Chang-Won Lee
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH 44691, USA.,Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA
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16
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Zhang X, Shen Y, Du L, Wang R, Jiang B, Sun H, Pu J, Lin D, Wang M, Liu J, Sun Y. Serological survey of canine H3N2, pandemic H1N1/09, and human seasonal H3N2 influenza viruses in cats in northern China, 2010-2014. Virol J 2015; 12:50. [PMID: 25889762 PMCID: PMC4391672 DOI: 10.1186/s12985-015-0285-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 03/23/2015] [Indexed: 12/05/2022] Open
Abstract
Background The close contact between cats and humans poses a threat to public health because of the potential zoonotic transmission of influenza viruses to humans. Therefore, we examined the seroprevalence of pandemic H1N1/09, canine H3N2, and human H3N2 viruses in pet cats in northern China from 2010 to 2014. Finding Of 1794 serum samples, the seropositivity rates for H1N1/09, canine H3N2, and human H3N2 were 5.7%, 0.7%, and 0.4%, respectively. The seropositivity rate for H1N1/09 in cats was highest in 2010 (8.3%), and then declined continuously thereafter. Cats older than 10 years were most commonly seropositive for the H1N1/09 virus. Conclusions Our findings emphasize the need for continuous surveillance of influenza viruses in cats in China.
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Affiliation(s)
- Xuxiao Zhang
- State Key Laboratory of Agrobiotechnology, College of Veterinary Medicine and Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Ye Shen
- State Key Laboratory of Agrobiotechnology, College of Veterinary Medicine and Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Lijie Du
- State Key Laboratory of Agrobiotechnology, College of Veterinary Medicine and Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Ran Wang
- State Key Laboratory of Agrobiotechnology, College of Veterinary Medicine and Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Bo Jiang
- State Key Laboratory of Agrobiotechnology, College of Veterinary Medicine and Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Honglei Sun
- State Key Laboratory of Agrobiotechnology, College of Veterinary Medicine and Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Juan Pu
- State Key Laboratory of Agrobiotechnology, College of Veterinary Medicine and Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Degui Lin
- State Key Laboratory of Agrobiotechnology, College of Veterinary Medicine and Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Ming Wang
- State Key Laboratory of Agrobiotechnology, College of Veterinary Medicine and Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Jinhua Liu
- State Key Laboratory of Agrobiotechnology, College of Veterinary Medicine and Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Yipeng Sun
- State Key Laboratory of Agrobiotechnology, College of Veterinary Medicine and Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
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17
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Amorim AR, Fornells LAMG, Reis FDC, Rezende DJ, Mendes GDS, Couceiro JNDSS, Santos NSDO. Influenza A virus infection of healthy piglets in an abattoir in Brazil: animal-human interface and risk for interspecies transmission. Mem Inst Oswaldo Cruz 2014; 108:548-53. [PMID: 23903968 PMCID: PMC3970599 DOI: 10.1590/0074-0276108052013003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Accepted: 04/30/2013] [Indexed: 02/02/2023] Open
Abstract
Asymptomatic influenza virus infections in pigs are frequent and the
lack of measures for controlling viral spread facilitates the circulation of
different virus strains between pigs. The goal of this study was to demonstrate
the circulation of influenza A virus strains among asymptomatic piglets in an
abattoir in Brazil and discuss the potential public health impacts. Tracheal
samples (n = 330) were collected from asymptomatic animals by a veterinarian
that also performed visual lung tissue examinations. No slaughtered animals
presented with any noticeable macroscopic signs of influenza infection following
examination of lung tissues. Samples were then analysed by reverse
transcription-polymerase chain reaction that resulted in the identification of
30 (9%) influenza A positive samples. The presence of asymptomatic pig
infections suggested that these animals could facilitate virus dissemination and
act as a source of infection for the herd, thereby enabling the emergence of
influenza outbreaks associated with significant economic losses. Furthermore,
the continuous exposure of the farm and abattoir workers to the virus increases
the risk for interspecies transmission. Monitoring measures of swine influenza
virus infections and vaccination and monitoring of employees for influenza
infection should also be considered. In addition regulatory agencies should
consider the public health ramifications regarding the potential zoonotic viral
transmission between humans and pigs.
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Affiliation(s)
- Ariane Ribeiro Amorim
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
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18
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Serological report of pandemic and seasonal human influenza virus infection in dogs in southern China. Arch Virol 2014; 159:2877-82. [DOI: 10.1007/s00705-014-2119-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Accepted: 05/11/2014] [Indexed: 11/28/2022]
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Evidence for subclinical influenza A(H1N1)pdm09 virus infection among dogs in Guangdong Province, China. J Clin Microbiol 2014; 52:1762-5. [PMID: 24599980 DOI: 10.1128/jcm.03522-13] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
During 2012, we identified sampled dogs with elevated levels of antibodies (≥1:40) against A(H1N1)pdm09 virus by using a hemagglutination inhibition (HI) assay (seroprevalence, 24.7%) and a microneutralization (MN) assay (seroprevalence, 10.8%). These high seroprevalences of A(H1N1)pdm09 among dogs without clinical signs of influenza support the premise that dogs may play a role in the human influenza ecology in China.
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Ramírez-Martínez LA, Contreras-Luna M, De la Luz J, Manjarrez ME, Rosete DP, Rivera-Benitez JF, Saavedra-Montañez M, Ramírez-Mendoza H. Evidence of transmission and risk factors for influenza A virus in household dogs and their owners. Influenza Other Respir Viruses 2013; 7:1292-6. [PMID: 24034782 PMCID: PMC4634238 DOI: 10.1111/irv.12162] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/03/2013] [Indexed: 12/20/2022] Open
Abstract
Background The possible transmission of influenza A virus between dogs and humans is important, as in Mexico City there are approximately 1·2 million dogs. We present the first evidence of influenza A virus infection in household dogs in Mexico. Objectives The objective of this study was to identify the presence of antibodies against influenza A virus in dogs and their owners, as well as the presence of RNA of influenza A virus in nasal exudates of dogs and, thereby, assess the possible transmission of the virus between humans and dogs. Methods Serum samples from household dogs and their owners were analyzed to detect the presence of antibodies against three subtypes of human influenza virus (H1N1pdm09, H1N1, and H3N2), as well as subtype H3N8 of equine influenza. We analyzed dog nasal exudates to detect influenza viral RNA. The relationship between the seropositivity of dogs and various factors (age, sex, constantly at home, and seropositivity of owners) was statistically analyzed. Results Seroprevalence for human influenza in dogs was 0·9% (1 of 113), and it was 4% (5 of 113) for equine influenza. In humans, seroprevalence was 22% for subtype H1N1pdm09, 20% for subtype H1N1, and 11% for subtype H3N2. No significant association (P > 0·05) was found between seropositivity and any of the assessed factors. Furthermore, no viral RNA was detected in the nasal exudate samples. Conclusions Results revealed seroprevalence of the influenza virus in household dogs in Mexico City. It can be assumed that dogs are currently becoming infected with different subtypes of influenza viruses.
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Affiliation(s)
- Luis A Ramírez-Martínez
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Distrito Federal, México
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