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Khalil AM, Martinez-Sobrido L, Mostafa A. Zoonosis and zooanthroponosis of emerging respiratory viruses. Front Cell Infect Microbiol 2024; 13:1232772. [PMID: 38249300 PMCID: PMC10796657 DOI: 10.3389/fcimb.2023.1232772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 12/11/2023] [Indexed: 01/23/2024] Open
Abstract
Lung infections in Influenza-Like Illness (ILI) are triggered by a variety of respiratory viruses. All human pandemics have been caused by the members of two major virus families, namely Orthomyxoviridae (influenza A viruses (IAVs); subtypes H1N1, H2N2, and H3N2) and Coronaviridae (severe acute respiratory syndrome coronavirus 2, SARS-CoV-2). These viruses acquired some adaptive changes in a known intermediate host including domestic birds (IAVs) or unknown intermediate host (SARS-CoV-2) following transmission from their natural reservoirs (e.g. migratory birds or bats, respectively). Verily, these acquired adaptive substitutions facilitated crossing species barriers by these viruses to infect humans in a phenomenon that is known as zoonosis. Besides, these adaptive substitutions aided the variant strain to transmit horizontally to other contact non-human animal species including pets and wild animals (zooanthroponosis). Herein we discuss the main zoonotic and reverse-zoonosis events that occurred during the last two pandemics of influenza A/H1N1 and SARS-CoV-2. We also highlight the impact of interspecies transmission of these pandemic viruses on virus evolution and possible prophylactic and therapeutic interventions. Based on information available and presented in this review article, it is important to close monitoring viral zoonosis and viral reverse zoonosis of pandemic strains within a One-Health and One-World approach to mitigate their unforeseen risks, such as virus evolution and resistance to limited prophylactic and therapeutic interventions.
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Affiliation(s)
- Ahmed Magdy Khalil
- Disease Intervention & Prevention and Host Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, United States
- Department of Zoonotic Diseases, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Luis Martinez-Sobrido
- Disease Intervention & Prevention and Host Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, United States
| | - Ahmed Mostafa
- Disease Intervention & Prevention and Host Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, United States
- Center of Scientific Excellence for Influenza Viruses, Water Pollution Research Department, Environment and Climate Change Research Institute, National Research Centre, Giza, Egypt
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2
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Abdelwhab EM, Mettenleiter TC. Zoonotic Animal Influenza Virus and Potential Mixing Vessel Hosts. Viruses 2023; 15:980. [PMID: 37112960 PMCID: PMC10145017 DOI: 10.3390/v15040980] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/05/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
Influenza viruses belong to the family Orthomyxoviridae with a negative-sense, single-stranded segmented RNA genome. They infect a wide range of animals, including humans. From 1918 to 2009, there were four influenza pandemics, which caused millions of casualties. Frequent spillover of animal influenza viruses to humans with or without intermediate hosts poses a serious zoonotic and pandemic threat. The current SARS-CoV-2 pandemic overshadowed the high risk raised by animal influenza viruses, but highlighted the role of wildlife as a reservoir for pandemic viruses. In this review, we summarize the occurrence of animal influenza virus in humans and describe potential mixing vessel or intermediate hosts for zoonotic influenza viruses. While several animal influenza viruses possess a high zoonotic risk (e.g., avian and swine influenza viruses), others are of low to negligible zoonotic potential (e.g., equine, canine, bat and bovine influenza viruses). Transmission can occur directly from animals, particularly poultry and swine, to humans or through reassortant viruses in "mixing vessel" hosts. To date, there are less than 3000 confirmed human infections with avian-origin viruses and less than 7000 subclinical infections documented. Likewise, only a few hundreds of confirmed human cases caused by swine influenza viruses have been reported. Pigs are the historic mixing vessel host for the generation of zoonotic influenza viruses due to the expression of both avian-type and human-type receptors. Nevertheless, there are a number of hosts which carry both types of receptors and can act as a potential mixing vessel host. High vigilance is warranted to prevent the next pandemic caused by animal influenza viruses.
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Affiliation(s)
- Elsayed M. Abdelwhab
- Institute of Molecular Virology and Cell Biology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, 17493 Greifswald-Insel Riems, Germany
| | - Thomas C. Mettenleiter
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, 17493 Greifswald-Insel Riems, Germany
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3
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Mok CKP, Qin K. Mink infection with influenza A viruses: an ignored intermediate host? ONE HEALTH ADVANCES 2023; 1:5. [PMID: 37521532 PMCID: PMC10060132 DOI: 10.1186/s44280-023-00004-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/08/2023] [Accepted: 02/10/2023] [Indexed: 08/01/2023]
Abstract
Continuously emergence of human infection with avian influenza A virus poses persistent threat to public health, as illustrated in zoonotic H5N1/6 and H7N9 infections. The recent surge of infection to farmed mink by multiple subtypes of avian influenza A viruses in China highlights the role of mink in the ecology of influenza in this region. Serologic studies suggested that farmed mink in China are frequently infected with prevailing human (H3N2 and H1N1/pdm) and avian (H7N9, H5N6, and H9N2) influenza A viruses. Moreover, genetic analysis from the sequences of influenza viruses from mink showed that several strains acquired mammalian adaptive mutations compared to their avian counterparts. The transmission of SARS-CoV-2 from mink to human alerts us that mink may serve as an intermediate host or reservoir of some emerging pathogens. Considering the high susceptibility to different influenza A viruses, it is possible that mink in endemic regions may play a role as an "mixing vessel" for generating novel pandemic strain. Thus, enhanced surveillance of influenza viruses in mink should be urgently implemented for early warning of potential pandemic.
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Affiliation(s)
- Chris Ka Pun Mok
- The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, SAR Hong Kong, China
- Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, SAR Hong Kong, China
| | - Kun Qin
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), 100 Yingxin Street, Western District, 100052 Beijing, China
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4
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Ritter JM, Wilson TM, Gary JM, Seixas JN, Martines RB, Bhatnagar J, Bollweg BC, Lee E, Estetter L, Silva-Flannery L, Bullock HA, Towner JS, Cossaboom CM, Wendling NM, Amman BR, Harvey RR, Taylor D, Rettler H, Barton Behravesh C, Zaki SR. Histopathology and localization of SARS-CoV-2 and its host cell entry receptor ACE2 in tissues from naturally infected US-farmed mink ( Neovison vison). Vet Pathol 2022; 59:681-695. [PMID: 35229669 DOI: 10.1177/03009858221079665] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes respiratory disease in mink similar to human COVID-19. We characterized the pathological findings in 72 mink from US farms with SARS-CoV-2 outbreaks, localized SARS-CoV-2 and its host cellular receptor angiotensin-converting enzyme 2 (ACE2) in mink respiratory tissues, and evaluated the utility of various test methods and specimens for SARS-CoV-2 detection in necropsy tissues. Of SARS-CoV-2-positive animals found dead, 74% had bronchiolitis and diffuse alveolar damage (DAD). Of euthanized SARS-CoV-2-positive animals, 72% had only mild interstitial pneumonia or minimal nonspecific lung changes (congestion, edema, macrophages); similar findings were seen in SARS-CoV-2-negative animals. Suppurative rhinitis, lymphocytic perivascular inflammation in the lungs, and lymphocytic infiltrates in other tissues were common in both SARS-CoV-2-positive and SARS-CoV-2-negative animals. In formalin-fixed paraffin-embedded (FFPE) upper respiratory tract (URT) specimens, conventional reverse transcription-polymerase chain reaction (cRT-PCR) was more sensitive than in situ hybridization (ISH) or immunohistochemistry (IHC) for detection of SARS-CoV-2. FFPE lung specimens yielded less detection of virus than FFPE URT specimens by all test methods. By IHC and ISH, virus localized extensively to epithelial cells in the nasal turbinates, and prominently within intact epithelium; olfactory mucosa was mostly spared. The SARS-CoV-2 receptor ACE2 was extensively detected by IHC within turbinate epithelium, with decreased detection in lower respiratory tract epithelium and alveolar macrophages. This study expands on the knowledge of the pathology and pathogenesis of natural SARS-CoV-2 infection in mink and supports their further investigation as a potential animal model of SARS-CoV-2 infection in humans.
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Affiliation(s)
- Jana M Ritter
- Centers for Disease Control and Prevention, Atlanta, GA
| | - Tais M Wilson
- Centers for Disease Control and Prevention, Atlanta, GA
| | - Joy M Gary
- Centers for Disease Control and Prevention, Atlanta, GA.,StageBio, Frederick, MD
| | | | | | | | | | - Elizabeth Lee
- Centers for Disease Control and Prevention, Atlanta, GA
| | | | | | | | | | | | | | - Brian R Amman
- Centers for Disease Control and Prevention, Atlanta, GA
| | | | - Dean Taylor
- Utah Department of Agriculture and Food, Salt Lake City, UT
| | | | | | - Sherif R Zaki
- Centers for Disease Control and Prevention, Atlanta, GA
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5
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Kessler S, Harder TC, Schwemmle M, Ciminski K. Influenza A Viruses and Zoonotic Events-Are We Creating Our Own Reservoirs? Viruses 2021; 13:v13112250. [PMID: 34835056 PMCID: PMC8624301 DOI: 10.3390/v13112250] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/04/2021] [Accepted: 11/06/2021] [Indexed: 01/16/2023] Open
Abstract
Zoonotic infections of humans with influenza A viruses (IAVs) from animal reservoirs can result in severe disease in individuals and, in rare cases, lead to pandemic outbreaks; this is exemplified by numerous cases of human infection with avian IAVs (AIVs) and the 2009 swine influenza pandemic. In fact, zoonotic transmissions are strongly facilitated by manmade reservoirs that were created through the intensification and industrialization of livestock farming. This can be witnessed by the repeated introduction of IAVs from natural reservoirs of aquatic wild bird metapopulations into swine and poultry, and the accompanied emergence of partially- or fully-adapted human pathogenic viruses. On the other side, human adapted IAV have been (and still are) introduced into livestock by reverse zoonotic transmission. This link to manmade reservoirs was also observed before the 20th century, when horses seemed to have been an important reservoir for IAVs but lost relevance when the populations declined due to increasing industrialization. Therefore, to reduce zoonotic events, it is important to control the spread of IAV within these animal reservoirs, for example with efficient vaccination strategies, but also to critically surveil the different manmade reservoirs to evaluate the emergence of new IAV strains with pandemic potential.
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Affiliation(s)
- Susanne Kessler
- Medical Center, Institute of Virology, University of Freiburg, 79104 Freiburg, Germany; (S.K.); (M.S.)
- Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany
| | - Timm C. Harder
- Friedrich-Loeffler-Institut (FLI), Institute of Diagnostic Virology, 17493 Greifswald-Insel Riems, Germany;
| | - Martin Schwemmle
- Medical Center, Institute of Virology, University of Freiburg, 79104 Freiburg, Germany; (S.K.); (M.S.)
- Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany
| | - Kevin Ciminski
- Medical Center, Institute of Virology, University of Freiburg, 79104 Freiburg, Germany; (S.K.); (M.S.)
- Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany
- Correspondence:
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6
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Clayton MJ, Kelly EJ, Mainenti M, Wilhelm A, Torchetti MK, Killian ML, Van Wettere AJ. Pandemic lineage 2009 H1N1 influenza A virus infection in farmed mink in Utah. J Vet Diagn Invest 2021; 34:82-85. [PMID: 34697977 DOI: 10.1177/10406387211052966] [Citation(s) in RCA: 3] [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
Mink are susceptible to infection with influenza A virus (IAV) of swine and human origin. In 2019, a Utah mink farm had an outbreak of respiratory disease in kits caused by infection with the pandemic influenza A(H1N1)2009 virus [A(H1N1)pdm09]. In 3 wk, ~325, 1-2-wk-old kits died (10% mortality in kits). All deaths occurred in a single barn that housed 640 breeding females. No clinical signs or deaths occurred among adult mink. Five dead kits and 3 euthanized female mink were autopsied. All kits had moderate-to-severe neutrophilic and lymphohistiocytic interstitial pneumonia; adult mink had minimal-to-moderate lymphohistiocytic bronchointerstitial pneumonia. Immunohistochemistry and real-time PCR targeting the matrix gene detected IAV in lung of kits and adults. Virus isolation and genetic analysis identified the A(H1N1)pdm09 virus. The source of the virus was not determined but is thought to be the result of reverse zoonosis. Our case emphasizes the need for close monitoring on mink farms for interspecies transmission of IAV and for safe work practices on farms and in diagnostic laboratories. Additionally, a pandemic virus may continue to circulate at low levels long after the global event is declared over.
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Affiliation(s)
- Michael J Clayton
- Utah Veterinary Diagnostic Laboratory, School of Veterinary Medicine, Department of Animal, Dairy and Veterinary Science, Utah State University, Logan and Spanish Fork, UT, USA
| | - E Jane Kelly
- Utah Veterinary Diagnostic Laboratory, School of Veterinary Medicine, Department of Animal, Dairy and Veterinary Science, Utah State University, Logan and Spanish Fork, UT, USA
| | - Marta Mainenti
- Utah Veterinary Diagnostic Laboratory, School of Veterinary Medicine, Department of Animal, Dairy and Veterinary Science, Utah State University, Logan and Spanish Fork, UT, USA
| | - Amanda Wilhelm
- Utah Veterinary Diagnostic Laboratory, School of Veterinary Medicine, Department of Animal, Dairy and Veterinary Science, Utah State University, Logan and Spanish Fork, UT, USA
| | - Mia Kim Torchetti
- National Veterinary Services Laboratories, Veterinary Services, U.S. Department of Agriculture, Ames, IA, USA
| | - Mary Lea Killian
- National Veterinary Services Laboratories, Veterinary Services, U.S. Department of Agriculture, Ames, IA, USA
| | - Arnaud J Van Wettere
- Utah Veterinary Diagnostic Laboratory, School of Veterinary Medicine, Department of Animal, Dairy and Veterinary Science, Utah State University, Logan and Spanish Fork, UT, USA
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7
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Zalewski A, Virtanen JME, Brzeziński M, Kołodziej‐Sobocińska M, Jankow W, Sironen T. Aleutian mink disease: Spatio-temporal variation of prevalence and influence on the feral American mink. Transbound Emerg Dis 2021; 68:2556-2570. [PMID: 33197283 PMCID: PMC8359164 DOI: 10.1111/tbed.13928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/20/2020] [Accepted: 11/12/2020] [Indexed: 12/15/2022]
Abstract
Pathogens are one of the factors driving wildlife population dynamics. The spread of pathogens in wildlife is currently highly related to the transmission of pathogens from farmed animals, which has increased with the constant development of farming. Here, we analysed the spatio-temporal variation in the prevalence of Aleutian mink disease virus (AMDV) antibodies in feral American mink (Neovison vison) populations in Poland (1,153 individuals from nine sites) in relation to mink farming intensity. AMDV was detected in feral mink at all study sites and the prevalence ranged from 0.461 in the northern region to 0.826 in the western region. Mink males and adults were infected more often than females and subadults; the infection was also more frequent during the mink breeding season than during non-breeding. The prevalence of AMDV changed non-linearly in consecutive years and the peak of prevalence was every 3-4 years. The predicted AMDV prevalence was low at sites where the number of farmed mink was also low and increased linearly with the increase in the number of mink kept on farms. The predicted AMDV prevalence at sites with low mink farming intensity strongly varied between years, whereas at sites with high mink farming intensity, the predicted prevalence did not change significantly. AMDV infection affected the mink's body condition and caused an increase in the size of the spleen, liver and kidneys. This study shows that Aleutian mink disease strongly affects feral mink but the spatio-temporal variation of its prevalence is complex and partly related to the transmission of the virus from farmed mink to feral populations. The study highlights the complexity of AMDV circulation in feral mink populations and implicates a potential spillover of the virus to native species.
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Affiliation(s)
- Andrzej Zalewski
- Mammal Research InstitutePolish Academy of SciencesBiałowieżaPoland
| | - Jenni M. E. Virtanen
- Department of Veterinary BiosciencesFaculty of Veterinary MedicineUniversity of HelsinkiHelsinkiFinland
- Department of VirologyFaculty of MedicineUniversity of HelsinkiHelsinkiFinland
| | | | | | - Władysław Jankow
- Mammal Research InstitutePolish Academy of SciencesBiałowieżaPoland
| | - Tarja Sironen
- Department of Veterinary BiosciencesFaculty of Veterinary MedicineUniversity of HelsinkiHelsinkiFinland
- Department of VirologyFaculty of MedicineUniversity of HelsinkiHelsinkiFinland
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8
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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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9
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Abstract
Over the past decade, pandemics caused by pandemic H1N1 (pH1N1) influenza virus in 2009 and severe acute respiratory syndrome virus type 2 (SARS-CoV-2) in 2019 have emerged. Both are high-impact respiratory pathogens originating from animals. Their wide distribution in the human population subsequently results in an increased risk of human-to-animal transmission: reverse zoonosis. Although there have only been rare reports of reverse zoonosis events associated with the ongoing coronavirus disease 2019 (COVID-19) pandemic from SARS-CoV-2 so far, comparison with the pH1N1 influenza pandemic can provide a better understanding of the possible consequences of such events for public and animal health. The results of our review suggest that similar factors contribute to successful crossing of the host species barriers in both pandemics. Specific risk factors include sufficient interaction between infected humans and recipient animals, suitability of the animal host factors for productive virus infection, and suitability of the animal host population for viral persistence. Of particular concern is virus spread to susceptible animal species, in which group housing and contact network structure could potentially result in an alternative virus reservoir, from which reintroduction into humans can take place. Virus exposure in high-density populations could allow sustained transmission in susceptible animal species. Identification of the risk factors and serological surveillance in SARS-CoV-2-susceptible animal species that are group-housed should help reduce the threat from reverse zoonosis of COVID-19.
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Affiliation(s)
| | - Thijs Kuiken
- Erasmus University Medical Centre, Rotterdam, Netherlands
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10
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Molenaar RJ, Vreman S, Hakze-van der Honing RW, Zwart R, de Rond J, Weesendorp E, Smit LAM, Koopmans M, Bouwstra R, Stegeman A, van der Poel WHM. Clinical and Pathological Findings in SARS-CoV-2 Disease Outbreaks in Farmed Mink (Neovison vison). Vet Pathol 2020; 57:653-657. [DOI: 10.1177/0300985820943535] [Citation(s) in RCA: 113] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
SARS-CoV-2, the causative agent of COVID-19, caused respiratory disease outbreaks with increased mortality in 4 mink farms in the Netherlands. The most striking postmortem finding was an acute interstitial pneumonia, which was found in nearly all examined mink that died at the peak of the outbreaks. Acute alveolar damage was a consistent histopathological finding in mink that died with pneumonia. SARS-CoV-2 infections were confirmed by detection of viral RNA in throat swabs and by immunohistochemical detection of viral antigen in nasal conchae, trachea, and lung. Clinically, the outbreaks lasted for about 4 weeks but some animals were still polymerase chain reaction–positive for SARS-CoV-2 in throat swabs after clinical signs had disappeared. This is the first report of the clinical and pathological characteristics of SARS-CoV-2 outbreaks in mink farms.
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Affiliation(s)
- Robert Jan Molenaar
- GD Animal Health, Deventer, Netherlands
- Robert-Jan Molenaar and Sandra Vreman contributed equally to this work
| | - Sandra Vreman
- Wageningen Bioveterinary Research, Lelystad, Netherlands
- Robert-Jan Molenaar and Sandra Vreman contributed equally to this work
| | | | - Rob Zwart
- Wageningen Bioveterinary Research, Lelystad, Netherlands
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11
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Abstract
Influenza A viruses (IAVs) of the H9 subtype are enzootic in Asia, the Middle East, and parts of North and Central Africa, where they cause significant economic losses to the poultry industry. Of note, some strains of H9N2 viruses have been linked to zoonotic episodes of mild respiratory diseases. Because of the threat posed by H9N2 viruses to poultry and human health, these viruses are considered of pandemic concern by the World Health Organization (WHO). H9N2 IAVs continue to diversify into multiple antigenically and phylogenetically distinct lineages that can further promote the emergence of strains with pandemic potential. Somewhat neglected compared with the H5 and H7 subtypes, there are numerous indicators that H9N2 viruses could be involved directly or indirectly in the emergence of the next influenza pandemic. The goal of this work is to discuss the state of knowledge on H9N2 IAVs and to provide an update on the contemporary global situation.
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Affiliation(s)
- Silvia Carnaccini
- Department of Population Health, Poultry Diagnostic and Research Center, University of Georgia, Athens, Georgia 30602, USA
| | - Daniel R Perez
- Department of Population Health, Poultry Diagnostic and Research Center, University of Georgia, Athens, Georgia 30602, USA
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12
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A Global Perspective on H9N2 Avian Influenza Virus. Viruses 2019; 11:v11070620. [PMID: 31284485 PMCID: PMC6669617 DOI: 10.3390/v11070620] [Citation(s) in RCA: 173] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 06/30/2019] [Accepted: 07/01/2019] [Indexed: 11/26/2022] Open
Abstract
H9N2 avian influenza viruses have become globally widespread in poultry over the last two decades and represent a genuine threat both to the global poultry industry but also humans through their high rates of zoonotic infection and pandemic potential. H9N2 viruses are generally hyperendemic in affected countries and have been found in poultry in many new regions in recent years. In this review, we examine the current global spread of H9N2 avian influenza viruses as well as their host range, tropism, transmission routes and the risk posed by these viruses to human health.
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13
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Xue R, Tian Y, Hou T, Bao D, Chen H, Teng Q, Yang J, Li X, Wang G, Li Z, Liu Q. H9N2 influenza virus isolated from minks has enhanced virulence in mice. Transbound Emerg Dis 2018; 65:904-910. [PMID: 29333687 DOI: 10.1111/tbed.12805] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Indexed: 12/26/2022]
Abstract
H9N2 is one of the major subtypes of influenza virus circulating in poultry in China, which has a wide host range from bird to mammals. Two H9N2 viruses were isolated from one mink farm in 2014. Phylogenetic analysis showed that internal genes of the H9N2 viruses have close relationship with those of H7N9 viruses. Interestingly, two H9N2 were separated in phylogenetic trees, indicating that they are introduced to this mink farm in two independent events. And further mice studies showed that one H9N2 caused obvious weight loss and 20% mortality in infected mice, while another virus did not cause any clinical sign in mice infected at the same dose. Genetic analysis indicated that the virulent H9N2 contain a natural mutation at 701N in PB2 protein, which was reported to contribute to mammalian adaptation. However, such substitution is absent in the H9N2 avirulent to mice. Circulation of H9N2 in mink may drive the virus to adapt mammals; continual surveillance of influenza virus in mink was warranted.
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Affiliation(s)
- R Xue
- College of Animal Science and Technology, Shandong Agriculture University, Taian, China
| | - Y Tian
- College of Animal Science and Technology, Shandong Agriculture University, Taian, China.,Shanghai Veterinary Research Institute, CAAS, Shanghai, China.,Key Laboratory of Animal Epidemiology and Zoonoses, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - T Hou
- Shanghai Veterinary Research Institute, CAAS, Shanghai, China
| | - D Bao
- Shanghai Veterinary Research Institute, CAAS, Shanghai, China
| | - H Chen
- Shanghai Veterinary Research Institute, CAAS, Shanghai, China
| | - Q Teng
- Shanghai Veterinary Research Institute, CAAS, Shanghai, China
| | - J Yang
- Shanghai Veterinary Research Institute, CAAS, Shanghai, China
| | - X Li
- Shanghai Veterinary Research Institute, CAAS, Shanghai, China
| | - G Wang
- Shandong Provincial Center for Animal Disease Control and Prevention, Jinan, China
| | - Z Li
- Shanghai Veterinary Research Institute, CAAS, Shanghai, China
| | - Q Liu
- Shanghai Veterinary Research Institute, CAAS, Shanghai, China
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14
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Gholipour H, Busquets N, Fernández-Aguilar X, Sánchez A, Ribas MP, De Pedro G, Lizarraga P, Alarcia-Alejos O, Temiño C, Cabezón O. Influenza A Virus Surveillance in the Invasive American Mink (Neovison vison) from Freshwater Ecosystems, Northern Spain. Zoonoses Public Health 2016; 64:363-369. [PMID: 27918148 DOI: 10.1111/zph.12316] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Indexed: 12/22/2022]
Abstract
Influenza A viruses (IAVs) are negative-sense, single-stranded and segmented RNA viruses of the Orthomyxoviridae family that may cause acute respiratory disease in a wide range of birds and mammals. Susceptibility of several species within the family Mustelidae to IAVs has been reported as a result of natural or experimental infections. The objectives of this study were to assess whether free-ranging American mink populations from Northern Spain were infected with IAV and try to define the role of this species in the epidemiology of IAV. Sera from 689 American mink from Northern Spain captured between 2011 and 2014 were tested for the presence of antibodies against IAVs using a commercial competition cELISA. Positive sera were further analysed with haemagglutination inhibition (HI) assay. Fifteen of the 689 (2.2%, 1.3-3.6 CI95% ) of the American minks analysed were ELISA positive. No significant differences were observed between years of capture, provinces, river basins, sexes or ages of the animals. All seropositive sera resulted negative to the panel strains used in the HI assay, showing that the most relevant strains circulating in swine, the most relevant avian subtypes (H5 and H7) and the H10N4 subtype isolated in minks have not been circulating in this free-ranging exotic carnivore from Spain. In the light of these results, the free-range American mink from Northern Spain do not seem to have an important role in the epidemiology of IAVs.
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Affiliation(s)
- H Gholipour
- Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.,Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - N Busquets
- IRTA, Centre de Recerca en Sanitat Animal (CReSA-IRTA), Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - X Fernández-Aguilar
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, Bellaterra, Spain.,UAB, Centre de Recerca en Sanitat Animal (CReSA-IRTA), Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - A Sánchez
- Servicio de Virología, Laboratorio Central de Veterinaria, Ministerio de Agricultura, Alimentación y Medio Ambiente, Gobierno de España, Algete, Madrid, Spain
| | - M P Ribas
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - G De Pedro
- Centro de Recuperación de Animales Silvestres de Valladolid, Valladolid, Spain
| | - P Lizarraga
- Martioda Wildlife Rehabilitation Center, Martioda, Álava, Spain
| | - O Alarcia-Alejos
- Dirección General del Medio Natural, Consejería de Fomento y Medio Ambiente, Junta de Castilla y León, Valladolid, Spain
| | - C Temiño
- Servicio Territorial de Medio Ambiente, Consejería de Fomento y Medio Ambiente, Junta de Castilla y León, Burgos, Spain
| | - O Cabezón
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, Bellaterra, Spain.,UAB, Centre de Recerca en Sanitat Animal (CReSA-IRTA), Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
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15
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Zhang C, Xuan Y, Shan H, Yang H, Wang J, Wang K, Li G, Qiao J. Avian influenza virus H9N2 infections in farmed minks. Virol J 2015; 12:180. [PMID: 26527402 PMCID: PMC4630874 DOI: 10.1186/s12985-015-0411-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 10/27/2015] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND The prevalence of avian H9N2 viruses throughout Asia, along with their demonstrated ability to infect mammals, puts them high on the list of influenza viruses with pandemic potential for humans. In this study, we investigated whether H9N2 viruses could infect farmed minks. METHODS First, we conducted a serological survey for avian influenza virus antibodies on a random sample of the field-trial population of farmed minks. Then we inoculated farmed minks with A/Chicken/Hebei/4/2008 H9N2 viruses and observed the potential pathogenicity of H9N2 virus and virus shedding in infected minks. RESULTS H9 influenza antibodies could be detected in most farmed minks with a higher seropositivity, which indicated that farmed minks had the high prevalence of exposure to H9 viruses. After infection, the minks displayed the slight clinical signs including lethargy and initial weight loss. The infected lungs showed the mild diffuse pneumonia with thickened alveolar walls and inflammatory cellular infiltration. Influenza virus detection showed that viruses were detected in the allantoic fluids inoculated supernatant of lung tissues at 3 and 7 days post-infection (dpi), and found in the nasal swabs of H9N2-infected minks at 3-11 dpi, suggesting that H9N2 viruses replicated in the respiratory organ, were then shed outwards. HI antibody test showed that antibody levels began to rise at 7 dpi. CONCLUSIONS Our data provided the serological and experimental evidences that strongly suggested farmed minks under the natural state were susceptible to H9N2 viral infection and might be the H9N2 virus carriers. It is imperative to strengthen the H9N2 viral monitoring in farmed minks and pay urgent attention to prevent and control new influenza viruses pandemic prevalence.
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Affiliation(s)
- Chuanmei Zhang
- Department of Pathophysiology, College of Veterinary Medicine, China Agricultural University, Beijing, 100094, China. .,College of Animal Science and Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China.
| | - Yang Xuan
- College of Animal Science and Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China.
| | - Hu Shan
- College of Animal Science and Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China.
| | - Haiyan Yang
- College of Animal Science and Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China.
| | - Jianlin Wang
- College of Animal Science and Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China.
| | - Ke Wang
- College of Animal Science and Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China.
| | - Guimei Li
- College of Animal Science and Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China.
| | - Jian Qiao
- Department of Pathophysiology, College of Veterinary Medicine, China Agricultural University, Beijing, 100094, China.
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