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Obermeier PE, Buder SC, Hillen U. Pockenvirusinfektionen in der Dermatologie: Poxvirus infections in dermatology - the neglected, the notable, and the notorious. J Dtsch Dermatol Ges 2024; 22:56-96. [PMID: 38212918 DOI: 10.1111/ddg.15257_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 08/20/2023] [Indexed: 01/13/2024]
Abstract
ZusammenfassungDie Familie Poxviridae umfasst derzeit 22 Gattungen, die Wirbeltiere infizieren können. Humanpathogene Pockenviren gehören den Gattungen Ortho‐, Para‐, Mollusci‐ und Yatapoxvirus an. Bis zur Eradikation der Variola vera im Jahr 1979 waren die Pocken, im Volksmund auch Blattern genannt, eine schwerwiegende Gesundheitsbedrohung für die Bevölkerung. Noch heute sind Dermatologen mit zahlreichen Pockenvirusinfektionen konfrontiert, wie den Bauernhofpocken, die als Zoonosen nach Tierkontakten in ländlichen Gebieten oder nach Massenversammlungen auftreten können. In den Tropen können Erkrankungen durch Tanapox‐ oder Vaccinia‐Viren zu den Differenzialdiagnosen gehören. Dellwarzen sind weltweit verbreitet und werden in bestimmten Fällen als sexuell übertragbare Pockenvirusinfektion angesehen. In jüngster Zeit hatten sich Mpox (Affenpocken) zu einer gesundheitlichen Notlage von internationaler Tragweite entwickelt, die eine rasche Identifizierung und angemessene Behandlung durch Dermatologen und Infektiologen erfordert. Fortschritte und neue Erkenntnisse über Epidemiologie, Diagnose, klinische Manifestationen und Komplikationen sowie Behandlung und Prävention von Pockenvirusinfektionen erfordern ein hohes Maß an Fachwissen und interdisziplinärer Zusammenarbeit in den Bereichen Virologie, Infektiologie und Dermatologie. Dieser CME‐Artikel bietet einen aktualisierten systematischen Überblick, um praktizierende Dermatologen bei der Identifizierung, Differenzialdiagnose und Behandlung klinisch relevanter Pockenvirusinfektionen zu unterstützen.
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Affiliation(s)
- Patrick E Obermeier
- Klinik für Dermatologie und Venerologie, Vivantes Klinikum Neukölln, Berlin, Deutschland
- Abteilung für Infektionskrankheiten, Vaccine Safety Initiative, Berlin, Deutschland
| | - Susanne C Buder
- Klinik für Dermatologie und Venerologie, Vivantes Klinikum Neukölln, Berlin, Deutschland
- Konsiliarlabor für Gonokokken, Fachgebiet Sexuell übertragbare bakterielle Krankheitserreger, Robert Koch-Institut, Berlin, Deutschland
| | - Uwe Hillen
- Klinik für Dermatologie und Venerologie, Vivantes Klinikum Neukölln, Berlin, Deutschland
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Obermeier PE, Buder SC, Hillen U. Poxvirus infections in dermatology - the neglected, the notable, and the notorious. J Dtsch Dermatol Ges 2024; 22:56-93. [PMID: 38085140 DOI: 10.1111/ddg.15257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 08/20/2023] [Indexed: 12/22/2023]
Abstract
The family Poxviridae currently comprises 22 genera that infect vertebrates. Of these, members of the Ortho-, Para-, Mollusci- and Yatapoxvirus genera have been associated with human diseases of high clinical relevance in dermatology. Historically, smallpox had been a notorious health threat until it was declared eradicated by the World Health Organization in 1979. Today, dermatologists are confronted with a variety of poxviral infections, such as farmyard pox, which occurs as a zoonotic infection after contact with animals. In the tropics, tanapox or vaccinia may be in the differential diagnosis as neglected tropical dermatoses. Molluscum contagiosum virus infection accounts for significant disease burden worldwide and is classified as a sexually transmitted infection in certain scenarios. Recently, mpox (monkeypox) has emerged as a public health emergency of international concern, requiring rapid recognition and appropriate management by dermatologists and infectious disease specialists. Advances and new insights into the epidemiology, diagnosis, clinical manifestations and complications, treatment, and prevention of poxviral infections require a high level of expertise and interdisciplinary skills from healthcare professionals linking virology, infectious diseases, and dermatology. This CME article provides a systematic overview and update to assist the practicing dermatologist in the identification, differential diagnosis, and management of poxviral infections.
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Affiliation(s)
- Patrick E Obermeier
- Department of Dermatology and Venereology, Vivantes Hospital Neukölln, Berlin, Germany
- Department of Infectious Diseases, Vaccine Safety Initiative, Berlin, Germany
| | - Susanne C Buder
- Department of Dermatology and Venereology, Vivantes Hospital Neukölln, Berlin, Germany
- German Reference Laboratory for Gonococci, Unit Sexually Transmitted Bacterial Pathogens, Department for Infectious Diseases, Robert Koch-Institute, Berlin, Germany
| | - Uwe Hillen
- Department of Dermatology and Venereology, Vivantes Hospital Neukölln, Berlin, Germany
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3
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Costa T, Stidworthy MF, Ehmann R, Denk D, Ashpole I, Drake G, Maciuca I, Zoeller G, Meyer H, Chantrey J. Cowpox in zoo and wild animals in the United Kingdom. J Comp Pathol 2023; 204:39-46. [PMID: 37352825 DOI: 10.1016/j.jcpa.2023.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 03/29/2023] [Accepted: 05/12/2023] [Indexed: 06/25/2023]
Abstract
Cowpox virus is considered to be a re-emerging zoonotic pathogen and a public health threat due to increasing numbers of cases in humans and animals in Europe over the past decade, including within the United Kingdom (UK). We present epidemiological data and diagnostic features of 27 recent, naturally occurring cowpox cases in zoo and wild animals across the UK, including the first reports of cowpox in two snow leopards (Panthera uncia), a Bengal tiger (Panthera tigris tigris), three Chilean pudus (Pudu puda), a Malayan tapir (Tapirus indicus) and a Eurasian otter (Lutra lutra), and the first reports of Orthopoxvirus infection in a lar gibbon (Hylobates lar), a Southern tamandua (Tamandua tetradactyla) and an aardvark (Orycteropus afer). This study provides a detailed overview of cowpox infections in a wide range of non-domestic animal species, presents a range of methods for diagnosis and demonstrates the value of retrospective analysis of pathology surveillance in revealing epidemiological links.
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Affiliation(s)
- Taiana Costa
- School of Veterinary Science, University of Liverpool, Chester High Road, Neston, Liverpool CH64 7TE, UK
| | - Mark F Stidworthy
- International Zoo Veterinary Group, Station House, Parkwood Street, Keighley BD21 4NQ, UK
| | - Rosina Ehmann
- Bundeswehr Institute of Microbiology, Neuherbergstraße 11, 80937 Munich, Germany
| | - Daniela Denk
- International Zoo Veterinary Group, Station House, Parkwood Street, Keighley BD21 4NQ, UK
| | - Ian Ashpole
- Chester Zoo, Upton-by-Chester, Chester CH2 1EU, UK
| | - Gabby Drake
- Chester Zoo, Upton-by-Chester, Chester CH2 1EU, UK
| | - Iuliana Maciuca
- School of Veterinary Science, University of Liverpool, Chester High Road, Neston, Liverpool CH64 7TE, UK
| | - Gudrun Zoeller
- Bundeswehr Institute of Microbiology, Neuherbergstraße 11, 80937 Munich, Germany
| | - Hermann Meyer
- Bundeswehr Institute of Microbiology, Neuherbergstraße 11, 80937 Munich, Germany
| | - Julian Chantrey
- Institute of Infection, Veterinary and Ecological Science (IVES), University of Liverpool, Leahurst Campus, Neston CH64 7TE, UK.
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Chauhan RP, Fogel R, Limson J. Overview of Diagnostic Methods, Disease Prevalence and Transmission of Mpox (Formerly Monkeypox) in Humans and Animal Reservoirs. Microorganisms 2023; 11:1186. [PMID: 37317160 DOI: 10.3390/microorganisms11051186] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 06/16/2023] Open
Abstract
Mpox-formerly monkeypox-is a re-emerging zoonotic virus disease, with large numbers of human cases reported during multi-country outbreaks in 2022. The close similarities in clinical symptoms that Mpox shares with many orthopoxvirus (OPXV) diseases make its diagnosis challenging, requiring laboratory testing for confirmation. This review focuses on the diagnostic methods used for Mpox detection in naturally infected humans and animal reservoirs, disease prevalence and transmission, clinical symptoms and signs, and currently known host ranges. Using specific search terms, up to 2 September 2022, we identified 104 relevant original research articles and case reports from NCBI-PubMed and Google Scholar databases for inclusion in the study. Our analyses observed that molecular identification techniques are overwhelmingly being used in current diagnoses, especially real-time PCR (3982/7059 cases; n = 41 studies) and conventional PCR (430/1830 cases; n = 30 studies) approaches being most-frequently-used to diagnose Mpox cases in humans. Additionally, detection of Mpox genomes, using qPCR and/or conventional PCR coupled to genome sequencing methods, offered both reliable detection and epidemiological analyses of evolving Mpox strains; identified the emergence and transmission of a novel clade 'hMPXV-1A' lineage B.1 during 2022 outbreaks globally. While a few current serologic assays, such as ELISA, reported on the detection of OPXV- and Mpox-specific IgG (891/2801 cases; n = 17 studies) and IgM antibodies (241/2688 cases; n = 11 studies), hemagglutination inhibition (HI) detected Mpox antibodies in human samples (88/430 cases; n = 6 studies), most other serologic and immunographic assays used were OPXV-specific. Interestingly, virus isolation (228/1259 cases; n = 24 studies), electron microscopy (216/1226 cases; n = 18 studies), and immunohistochemistry (28/40; n = 7 studies) remain useful methods of Mpox detection in humans in select instances using clinical and tissue samples. In animals, OPXV- and Mpox-DNA and antibodies were detected in various species of nonhuman primates, rodents, shrews, opossums, a dog, and a pig. With evolving transmission dynamics of Mpox, information on reliable and rapid detection methods and clinical symptoms of disease is critical for disease management.
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Affiliation(s)
- Ravendra P Chauhan
- Biotechnology Innovation Centre, Rhodes University, Makhanda 6139, Eastern Cape, South Africa
| | - Ronen Fogel
- Biotechnology Innovation Centre, Rhodes University, Makhanda 6139, Eastern Cape, South Africa
| | - Janice Limson
- Biotechnology Innovation Centre, Rhodes University, Makhanda 6139, Eastern Cape, South Africa
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5
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Taha TY, Townsend MB, Pohl J, Karem KL, Damon IK, Mbala Kingebeni P, Muyembe Tamfum JJ, Martin JW, Pittman PR, Huggins JW, Satheshkumar PS, Bagarozzi DA, Reynolds MG, Hughes LJ. Design and Optimization of a Monkeypox virus Specific Serological Assay. Pathogens 2023; 12:pathogens12030396. [PMID: 36986317 PMCID: PMC10054672 DOI: 10.3390/pathogens12030396] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 03/05/2023] Open
Abstract
Monkeypox virus (MPXV), a member of the Orthopoxvirus (OPXV) genus, is a zoonotic virus, endemic to central and western Africa that can cause smallpox-like symptoms in humans with fatal outcomes in up to 15% of patients. The incidence of MPXV infections in the Democratic Republic of the Congo, where the majority of cases have occurred historically, has been estimated to have increased as much as 20-fold since the end of smallpox vaccination in 1980. Considering the risk global travel carries for future disease outbreaks, accurate epidemiological surveillance of MPXV is warranted as demonstrated by the recent Mpox outbreak, where the majority of cases were occurring in non-endemic areas. Serological differentiation between childhood vaccination and recent infection with MPXV or other OPXVs is difficult due to the high level of conservation within OPXV proteins. Here, a peptide-based serological assay was developed to specifically detect exposure to MPXV. A comparative analysis of immunogenic proteins across human OPXVs identified a large subset of proteins that could potentially be specifically recognized in response to a MPXV infection. Peptides were chosen based upon MPXV sequence specificity and predicted immunogenicity. Peptides individually and combined were screened in an ELISA against serum from well-characterized Mpox outbreaks, vaccinee sera, and smallpox sera collected prior to eradication. One peptide combination was successful with ~86% sensitivity and ~90% specificity. The performance of the assay was assessed against the OPXV IgG ELISA in the context of a serosurvey by retrospectively screening a set of serum specimens from the region in Ghana believed to have harbored the MPXV-infected rodents involved in the 2003 United States outbreak.
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Affiliation(s)
- Taha Y. Taha
- Reagent and Diagnostic Services Branch, Division of Scientific Resources, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Michael B. Townsend
- Poxvirus and Rabies Branch, Division of High Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Jan Pohl
- Biotechnology Core Facility Branch, Division of Scientific Resources, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Kevin L. Karem
- Poxvirus and Rabies Branch, Division of High Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Inger K. Damon
- Poxvirus and Rabies Branch, Division of High Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Placide Mbala Kingebeni
- Institut National de Recherche Biomédicale, Ministère de la Santé Publique, Kinshasa P.O. Box 1197, Democratic Republic of the Congo
| | - Jean-Jacques Muyembe Tamfum
- Institut National de Recherche Biomédicale, Ministère de la Santé Publique, Kinshasa P.O. Box 1197, Democratic Republic of the Congo
| | - James W. Martin
- Department of Clinical Research, Division of Medicine, U.S. Army Medical Research Institute of Infectious Diseases (USAMRIID), Fort Detrick, MD 21702, USA
| | - Phillip R. Pittman
- Department of Clinical Research, Division of Medicine, U.S. Army Medical Research Institute of Infectious Diseases (USAMRIID), Fort Detrick, MD 21702, USA
| | - John W. Huggins
- Department of Clinical Research, Division of Medicine, U.S. Army Medical Research Institute of Infectious Diseases (USAMRIID), Fort Detrick, MD 21702, USA
| | - Panayampalli S. Satheshkumar
- Poxvirus and Rabies Branch, Division of High Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Dennis A. Bagarozzi
- Reagent and Diagnostic Services Branch, Division of Scientific Resources, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Mary G. Reynolds
- Poxvirus and Rabies Branch, Division of High Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Laura J. Hughes
- Reagent and Diagnostic Services Branch, Division of Scientific Resources, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
- Correspondence:
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Orthopoxvirus Zoonoses—Do We Still Remember and Are Ready to Fight? Pathogens 2023; 12:pathogens12030363. [PMID: 36986285 PMCID: PMC10052541 DOI: 10.3390/pathogens12030363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 02/24/2023] Open
Abstract
The eradication of smallpox was an enormous achievement due to the global vaccination program launched by World Health Organization. The cessation of the vaccination program led to steadily declining herd immunity against smallpox, causing a health emergency of global concern. The smallpox vaccines induced strong, humoral, and cell-mediated immune responses, protecting for decades after immunization, not only against smallpox but also against other zoonotic orthopoxviruses that now represent a significant threat to public health. Here we review the major aspects regarding orthopoxviruses’ zoonotic infections, factors responsible for viral transmissions, as well as the emerging problem of the increased number of monkeypox cases recently reported. The development of prophylactic measures against poxvirus infections, especially the current threat caused by the monkeypox virus, requires a profound understanding of poxvirus immunobiology. The utilization of animal and cell line models has provided good insight into host antiviral defenses as well as orthopoxvirus evasion mechanisms. To survive within a host, orthopoxviruses encode a large number of proteins that subvert inflammatory and immune pathways. The circumvention of viral evasion strategies and the enhancement of major host defenses are key in designing novel, safer vaccines, and should become the targets of antiviral therapies in treating poxvirus infections.
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Cowpox Viruses: A Zoo Full of Viral Diversity and Lurking Threats. Biomolecules 2023; 13:biom13020325. [PMID: 36830694 PMCID: PMC9953750 DOI: 10.3390/biom13020325] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
Cowpox viruses (CPXVs) exhibit the broadest known host range among the Poxviridae family and have caused lethal outbreaks in various zoo animals and pets across 12 Eurasian countries, as well as an increasing number of human cases. Herein, we review the history of how the cowpox name has evolved since the 1700s up to modern times. Despite early documentation of the different properties of CPXV isolates, only modern genetic analyses and phylogenies have revealed the existence of multiple Orthopoxvirus species that are currently constrained under the CPXV designation. We further chronicle modern outbreaks in zoos, domesticated animals, and humans, and describe animal models of experimental CPXV infections and how these can help shaping CPXV species distinctions. We also describe the pathogenesis of modern CPXV infections in animals and humans, the geographic range of CPXVs, and discuss CPXV-host interactions at the molecular level and their effects on pathogenicity and host range. Finally, we discuss the potential threat of these viruses and the future of CPXV research to provide a comprehensive review of CPXVs.
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Heer RS, Porter B, Jones N. Necrotic facial ulceration caused by cowpox virus. J Med Virol 2023; 95:e28372. [PMID: 36458564 DOI: 10.1002/jmv.28372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/23/2022] [Accepted: 11/29/2022] [Indexed: 12/05/2022]
Affiliation(s)
- Randeep S Heer
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Benedict Porter
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Nicola Jones
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
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Milligan AL, Koay SY, Dunning J. Monkeypox as an emerging infectious disease: the ophthalmic implications. Br J Ophthalmol 2022; 106:1629-1634. [PMID: 36216412 DOI: 10.1136/bjo-2022-322268] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 09/29/2022] [Indexed: 11/03/2022]
Abstract
The 2022 outbreak of monkeypox is of worldwide significance. There has been a rapid escalation in case numbers despite efforts to contain it and the WHO has declared it a Public Health Emergency of International Concern. To date, over 51 257 laboratory-confirmed cases have been reported, the majority in non-endemic countries, with 3279 in the UK. It is vital for ophthalmologists to understand this disease and the risk it poses. Human monkeypox is a zoonotic disease caused by the monkeypox virus, a double-stranded DNA virus in the Orthopoxvirus genus of the Poxviridae family. Other orthopoxviruses include variola (smallpox), cowpox and vaccinia; all of which have significant ocular sequelae. Transmission occurs from an animal reservoir (unknown, likely rodents) to a human host, leading to secondary human-to-human spread. During the recent outbreak, a higher incidence has been found in gay, bisexual or other men who have sex with men. Clinical diagnosis may be challenging as presentation can mimic common ophthalmic diseases. A thorough history is key to identifying potential cases. Ophthalmic manifestations may include preseptal cellulitis, conjunctivitis and keratitis. The oral antiviral agent tecovirimat, which was developed to treat smallpox, is the mainstay of treatment. Trifluorothymidine (trifluridine) eye-drops can be used for ophthalmic involvement. In addition, smallpox vaccines have provided some cross-immunity. Ocular monkeypox should be managed by infectious diseases specialists, in consultation with ophthalmologists to provide the expertise needed to treat potentially vision-threatening complications. This outbreak highlights the need for healthcare providers to implement appropriate infection control measures and be familiar with the identification and treatment of both cutaneous and ocular disease.
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Affiliation(s)
- Alice L Milligan
- Corneal and External Diseases Department and Accident and Emergency Department, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Su-Yin Koay
- Corneal and External Diseases Department and Accident and Emergency Department, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Jake Dunning
- Department of Infectious Diseases, Royal Free London NHS Foundation Trust, London, UK.,Pandemic Sciences Institute, University of Oxford, Oxford, UK
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Srinivasan Rajsri K, Rao M. Poxvirus-driven human diseases and emerging therapeutics. Ther Adv Infect Dis 2022; 9:20499361221136751. [PMID: 36406813 PMCID: PMC9666863 DOI: 10.1177/20499361221136751] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 10/17/2022] [Indexed: 08/29/2023] Open
Abstract
Poxviridae have been successful pathogens throughout recorded history, infecting humans among a variety of other hosts. Although eradication of the notorious smallpox has been a globally successful healthcare phenomenon, the recent emergence of Monkeypox virus, also belonging to the Orthopoxvirus genus and causing human disease, albeit milder than smallpox, is a cause of significant public health concern. The ongoing outbreak of monkeypox, demonstrating human-human transmission, in previously nonendemic countries, calls for critical need into further research in the areas of viral biology, ecology, and epidemiology to better understand, prevent and treat human infections. In the wake of these recent events, it becomes important to revisit poxviral infections, their pathogenesis and ability to cause infection across multiple nonhuman hosts and leap to a human host. The poxviruses that cause human diseases include Monkeypox virus, Molluscum contagiosum virus, and Orf virus. In this review, we summarize the current understanding of various poxviruses causing human diseases, provide insights into their replication and pathogenicity, disease progression and symptoms, preventive and treatment options, and their importance in shaping modern medicine through application in gene therapy, oncolytic viral therapies for human cancers, or as poxvirus vectors for vaccines.
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Affiliation(s)
- Kritika Srinivasan Rajsri
- Division of Biomaterials, Department of
Molecular Pathobiology, New York University College of Dentistry, New York,
NY, USA
- Department of Pathology, Vilcek Institute, New
York University School of Medicine, New York, NY, USA
| | - Mana Rao
- Essen Medical Associates, Bronx, NY 10461, USA.
ArchCare, New York, NY, USA
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Ferrier A, Frenois-Veyrat G, Schvoerer E, Henard S, Jarjaval F, Drouet I, Timera H, Boutin L, Mosca E, Peyrefitte C, Ferraris O. Fatal Cowpox Virus Infection in Human Fetus, France, 2017. Emerg Infect Dis 2021; 27:2570-2577. [PMID: 34352194 PMCID: PMC8462324 DOI: 10.3201/eid2710.204818] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Cowpox virus (CPXV) has an animal reservoir and is typically transmitted to humans by contact with infected animals. In 2017, CPXV infection of a pregnant woman in France led to the death of her fetus. Fetal death after maternal orthopoxvirus (smallpox) vaccination has been reported; however, this patient had not been vaccinated. Investigation of the patient’s domestic animals failed to demonstrate prevalence of CPXV infection among them. The patient’s diagnosis was confirmed by identifying CPXV DNA in all fetal and maternal biopsy samples and infectious CPXV in biopsy but not plasma samples. This case of fetal death highlights the risk for complications of orthopoxvirus infection during pregnancy. Among orthopoxviruses, fetal infection has been reported for variola virus and vaccinia virus; our findings suggest that CPXV poses the same threats for infection complications as vaccinia virus.
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12
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Serological Evidence of Multiple Zoonotic Viral Infections among Wild Rodents in Barbados. Pathogens 2021; 10:pathogens10060663. [PMID: 34071689 PMCID: PMC8229225 DOI: 10.3390/pathogens10060663] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/20/2021] [Accepted: 05/21/2021] [Indexed: 11/30/2022] Open
Abstract
Background: Rodents are reservoirs for several zoonotic pathogens that can cause human infectious diseases, including orthohantaviruses, mammarenaviruses and orthopoxviruses. Evidence exists for these viruses circulating among rodents and causing human infections in the Americas, but much less evidence exists for their presence in wild rodents in the Caribbean. Methods: Here, we conducted serological and molecular investigations of wild rodents in Barbados to determine the prevalence of orthohantavirus, mammarenavirus and orthopoxvirus infections, and the possible role of these rodent species as reservoirs of zoonotic pathogens. Using immunofluorescent assays (IFA), rodent sera were screened for the presence of antibodies to orthohantavirus, mammarenavirus (Lymphocytic choriomeningitis virus—LCMV) and orthopoxvirus (Cowpox virus—CPXV) infections. RT-PCR was then conducted on orthohantavirus and mammarenavirus-seropositive rodent sera and tissues, to detect the presence of viral RNA. Results: We identified antibodies against orthohantavirus, mammarenavirus, and orthopoxvirus among wild mice and rats (3.8%, 2.5% and 7.5% seropositivity rates respectively) in Barbados. No orthohantavirus or mammarenavirus viral RNA was detected from seropositive rodent sera or tissues using RT–PCR. Conclusions: Key findings of this study are the first serological evidence of orthohantavirus infections in Mus musculus and the first serological evidence of mammarenavirus and orthopoxvirus infections in Rattus norvegicus and M. musculus in the English-speaking Caribbean. Rodents may present a potential zoonotic and biosecurity risk for transmission of three human pathogens, namely orthohantaviruses, mammarenaviruses and orthopoxviruses in Barbados.
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Duggan AT, Klunk J, Porter AF, Dhody AN, Hicks R, Smith GL, Humphreys M, McCollum AM, Davidson WB, Wilkins K, Li Y, Burke A, Polasky H, Flanders L, Poinar D, Raphenya AR, Lau TTY, Alcock B, McArthur AG, Golding GB, Holmes EC, Poinar HN. The origins and genomic diversity of American Civil War Era smallpox vaccine strains. Genome Biol 2020; 21:175. [PMID: 32684155 PMCID: PMC7370420 DOI: 10.1186/s13059-020-02079-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 06/19/2020] [Indexed: 12/11/2022] Open
Abstract
Vaccination has transformed public health, most notably including the eradication of smallpox. Despite its profound historical importance, little is known of the origins and diversity of the viruses used in smallpox vaccination. Prior to the twentieth century, the method, source and origin of smallpox vaccinations remained unstandardised and opaque. We reconstruct and analyse viral vaccine genomes associated with smallpox vaccination from historical artefacts. Significantly, we recover viral molecules through non-destructive sampling of historical materials lacking signs of biological residues. We use the authenticated ancient genomes to reveal the evolutionary relationships of smallpox vaccination viruses within the poxviruses as a whole.
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Affiliation(s)
- Ana T Duggan
- Department of Anthropology, McMaster University, Hamilton, L8S 4L9, Canada.
| | - Jennifer Klunk
- Department of Biology, McMaster University, Hamilton, L8S 4L9, Canada.,Present address: Arbor Biosciences, Ann Arbor, MI, 48103, USA
| | - Ashleigh F Porter
- Marie Bashir Institute for Infectious Diseases and Biosecurity, School of Life and Environmental Sciences and School of Medical Sciences, University of Sydney, Sydney, NSW, 2006, Australia
| | - Anna N Dhody
- Mütter Research Institute, Philadelphia, PA, 19103, USA.,Mütter Museum of The College of Physicians of Philadelphia, Philadelphia, PA, 19103, USA
| | - Robert Hicks
- Mütter Research Institute, Philadelphia, PA, 19103, USA.,Mütter Museum of The College of Physicians of Philadelphia, Philadelphia, PA, 19103, USA
| | - Geoffrey L Smith
- Department of Pathology, University of Cambridge, Cambridge, CB2 1QP, UK
| | | | - Andrea M McCollum
- U.S. Centers for Disease Control and Prevention, Division of High-Consequence Pathogens and Pathology, Poxvirus and Rabies Branch, Atlanta, GA, 30333, USA
| | - Whitni B Davidson
- U.S. Centers for Disease Control and Prevention, Division of High-Consequence Pathogens and Pathology, Poxvirus and Rabies Branch, Atlanta, GA, 30333, USA
| | - Kimberly Wilkins
- U.S. Centers for Disease Control and Prevention, Division of High-Consequence Pathogens and Pathology, Poxvirus and Rabies Branch, Atlanta, GA, 30333, USA
| | - Yu Li
- U.S. Centers for Disease Control and Prevention, Division of High-Consequence Pathogens and Pathology, Poxvirus and Rabies Branch, Atlanta, GA, 30333, USA
| | - Amanda Burke
- Mütter Museum of The College of Physicians of Philadelphia, Philadelphia, PA, 19103, USA
| | - Hanna Polasky
- Mütter Museum of The College of Physicians of Philadelphia, Philadelphia, PA, 19103, USA
| | - Lowell Flanders
- Mütter Museum of The College of Physicians of Philadelphia, Philadelphia, PA, 19103, USA
| | - Debi Poinar
- Department of Anthropology, McMaster University, Hamilton, L8S 4L9, Canada
| | | | - Tammy T Y Lau
- Present address: BC Cancer Research Centre, Vancouver, V5Z 1G1, Canada.,M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, DeGroote School of Medicine, McMaster University, Hamilton, L8S 4K1, Canada
| | - Brian Alcock
- Present address: BC Cancer Research Centre, Vancouver, V5Z 1G1, Canada
| | - Andrew G McArthur
- Present address: BC Cancer Research Centre, Vancouver, V5Z 1G1, Canada
| | - G Brian Golding
- Department of Biology, McMaster University, Hamilton, L8S 4L9, Canada
| | - Edward C Holmes
- Marie Bashir Institute for Infectious Diseases and Biosecurity, School of Life and Environmental Sciences and School of Medical Sciences, University of Sydney, Sydney, NSW, 2006, Australia
| | - Hendrik N Poinar
- Department of Anthropology, McMaster University, Hamilton, L8S 4L9, Canada.,Present address: BC Cancer Research Centre, Vancouver, V5Z 1G1, Canada.,Department of Biochemistry, McMaster University, Hamilton, L8S 4L9, Canada
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14
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Abstract
Forty years after the last endemic smallpox case, variola virus (VARV) is still considered a major threat to humans due to its possible use as a bioterrorism agent. For many years, the risk of disease reemergence was thought to solely be through deliberate misuse of VARV strains kept in clandestine laboratories. However, recent experiments using synthetic biology have proven the feasibility of recreating a poxvirus de novo, implying that VARV could, in theory, be resurrected. Because of this new perspective, the WHO Advisory Committee on VARV Research released new recommendations concerning research on poxviruses that strongly encourages pursuing the development of new antiviral drugs against orthopoxviruses. In 2018, the U.S. FDA advised in favor of two molecules for smallpox treatment, tecovirimat and brincidofovir. This review highlights the difficulties to develop new drugs targeting an eradicated disease, especially as it requires working under the FDA "animal efficacy rule" with the few, and imperfect, animal models available.
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15
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Niebel D, Hornung T, Schmithausen R, Rothe H, Parcina M, Wenzel J, Exner M, Bieber T. [Facial necrosis caused by orthopoxvirus : Differential diagnosis and dermatohistopathological correlation of infectious facial ulcers]. Hautarzt 2019; 70:715-722. [PMID: 31076814 DOI: 10.1007/s00105-019-4409-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
This article reports the remarkable course of a facial ulcer in a patient receiving prednisolone for Crohn's disease. Based on the initially unclear origin of the ulcer the patient received a triple anti-infective treatment (antiviral, antibiotic, antimycotic) but the lesion showed a rapid progression. An orthopoxvirus infection could be verified later by extensive diagnostics and relevant differential diagnoses could be ruled out. Extensive necrotic changes were observed in the first weeks resulting in cicatricial healing after months. Human cowpox infections have been repeatedly reported in Germany and are a relevant zoonosis. Cats and rodents are main carriers. The differential diagnoses include infections caused by other bacterial, mycobacterial, mycotic and parasitic agents that are thoroughly discussed here both clinically and histopathologically. Especially cutaneous leishmaniasis must be named as the incidence is continuously rising. With inadequate treatment infectious facial ulcers may give rise to life-threatening complications and extensive disfiguring scarring, therefore treatment must be initiated in a timely manner.
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Affiliation(s)
- Dennis Niebel
- Klinik und Poliklinik für Dermatologie und Allergologie, Universitätsklinikum Bonn, Venusberg-Campus 1, 53127, Bonn, Deutschland.
| | - Thorsten Hornung
- Klinik und Poliklinik für Dermatologie und Allergologie, Universitätsklinikum Bonn, Venusberg-Campus 1, 53127, Bonn, Deutschland
| | - Ricarda Schmithausen
- Institut für Hygiene und Öffentliche Gesundheit, Universitätsklinikum Bonn, Venusberg-Campus 1, 53127, Bonn, Deutschland
| | - Hanna Rothe
- Klinik und Poliklinik für Dermatologie und Allergologie, Universitätsklinikum Bonn, Venusberg-Campus 1, 53127, Bonn, Deutschland
| | - Marijo Parcina
- Institut für Medizinische Mikrobiologie und Immunologie, Universitätsklinikum Bonn, Venusberg-Campus 1, 53127, Bonn, Deutschland
| | - Jörg Wenzel
- Klinik und Poliklinik für Dermatologie und Allergologie, Universitätsklinikum Bonn, Venusberg-Campus 1, 53127, Bonn, Deutschland
| | - Martin Exner
- Institut für Hygiene und Öffentliche Gesundheit, Universitätsklinikum Bonn, Venusberg-Campus 1, 53127, Bonn, Deutschland
| | - Thomas Bieber
- Klinik und Poliklinik für Dermatologie und Allergologie, Universitätsklinikum Bonn, Venusberg-Campus 1, 53127, Bonn, Deutschland
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16
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Abstract
Poxvirus (PXV) infections are a common cause of cutaneous signs. In France, certain forms of poxvirus are frequent and benign (molluscum contagiosum), while others are rare but potentially serious (cowpox virus [CPXV]). Whereas only smallpox and molluscum contagiosum viruses have a human reservoir and are transmitted between humans, most poxvirus infections are zoonoses having only animal reservoirs. Only a small number of poxviruses are responsible for infection in humans, but the increasing number of new pets, some of which are exotic, coupled with the rapid rise in international travel are creating a greater risk of transmission of zoonotic PXV to new vectors and of spread of these diseases to new regions throughout the world. In France, molluscum contagiosum, orf and milkers' nodule give rise to numerous consultations and are well known to dermatologists. However, dermatologists must also be able to identify other parapoxviruses of similar presentation to orf; thus, CPXV and monkeypox are considered potentially emergent viruses with a high risk of epidemic and spread due to increasing international transport and the loss of the maximum protection against smallpox. Finally, despite its declared eradication, smallpox is currently being monitored because of the potential risk of reintroduction, whether accidentally or deliberately through bioterrorism.
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Affiliation(s)
- G Bohelay
- Service de dermatologie, Hôpital Avicenne, AP-HP, 125, rue de Stalingrad, 93009 Bobigny, France
| | - T-A Duong
- Service de dermatologie, Hôpital Henri-Mondor, AP-HP, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France.
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17
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Abstract
Common marmosets are highly susceptible to several viral pathogens that exist as latent or subclinical infections in their natural reservoir hosts but cause severe disease or death when interspecies transmission occurs. Examples of such viruses in marmosets are herpes simplex virus infections, parainfluenza virus 1 infections, and measles acquired from humans, Saimiriine herpesvirus 1 infection after transmission from squirrel monkeys, and infections with lymphocytic choriomeningitis virus originating from mice. Other relevant viral infections causing spontaneous disease in common marmoset colonies include cowpox virus infections and paramyxovirus saguinus infections. Callitrichine herpesvirus 3 is a newly recognized lymphocryptovirus that is associated with the development of intestinal lymphoproliferative disease in common marmosets. Most viral pathogens causing disease in common marmosets are potential zoonotic agents, and protective measures should be implemented when handling these small New World monkeys.
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18
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Tamulyte G, Lauraitis J, Ganceviciene R, Grigaitiene J, Zouboulis CC. Cowpox virus infection in two brothers with possible human-to-human transmission. J Eur Acad Dermatol Venereol 2018; 33:e8-e10. [PMID: 29852532 DOI: 10.1111/jdv.15103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- G Tamulyte
- Centre of Dermatovenereology, Vilnius University Hospital Santaros Klinikos, Vilnius, Lithuania.,Clinic of Infectious Diseases and Dermatovenereology, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - J Lauraitis
- Centre of Dermatovenereology, Vilnius University Hospital Santaros Klinikos, Vilnius, Lithuania
| | - R Ganceviciene
- Clinic of Infectious Diseases and Dermatovenereology, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - J Grigaitiene
- Centre of Dermatovenereology, Vilnius University Hospital Santaros Klinikos, Vilnius, Lithuania.,Clinic of Infectious Diseases and Dermatovenereology, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - C C Zouboulis
- Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Brandenburg Medical School Theodore Fontane, Dessau, Germany
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19
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Zehender G, Lai A, Veo C, Bergna A, Ciccozzi M, Galli M. Bayesian reconstruction of the evolutionary history and cross-species transition of variola virus and orthopoxviruses. J Med Virol 2018; 90:1134-1141. [PMID: 29446492 DOI: 10.1002/jmv.25055] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 02/03/2018] [Indexed: 11/08/2022]
Abstract
Variola virus (VARV), the causative agent of smallpox, is an exclusively human virus belonging to the genus Orthopoxvirus, which includes many other viral species covering a wide range of mammal hosts, such as vaccinia, cowpox, camelpox, taterapox, ectromelia, and monkeypox virus. The tempo and mode of evolution of Orthopoxviruses were reconstructed using a Bayesian phylodynamic framework by analysing 80 hemagglutinin sequences retrieved from public databases. Bayesian phylogeography was used to estimate their putative ancestral hosts. In order to estimate the substitution rate, the tree including all of the available Orthopoxviruses was calibrated using historical references dating the South American variola minor clade (alastrim) to between the XVI and XIX century. The mean substitution rate determined by the analysis was 6.5 × 10-6 substitutions/site/year. Based on this evolutionary estimate, the time of the most recent common ancestor of the genus Orthopoxvirus was placed at about 10 000 years before the present. Cowpox virus was the species closest to the root of the phylogenetic tree. The root of VARV circulating in the XX century was estimated to be about 700 years ago, corresponding to about 1300 AD. The divergence between West African and South American VARV went back about 500 years ago (falling approximately in the XVI century). A rodent species is the most probable ancestral host from which the ancestors of all the known Orthopoxviruses were transmitted to the other mammal host species, and each of these species represented a dead-end for each new poxvirus species, without any further inter-specific spread.
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Affiliation(s)
- Gianguglielmo Zehender
- Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy.,Coordinated Research Center "EpiSoMI", University of Milan, Milano, Italy
| | - Alessia Lai
- Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
| | - Carla Veo
- Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
| | - Annalisa Bergna
- Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
| | - Massimo Ciccozzi
- Unit of Clinical Pathology and Microbiology, University Campus Bio-Medico of Rome, Rome, Italy
| | - Massimo Galli
- Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
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20
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Koban R, Neumann M, Daugs A, Bloch O, Nitsche A, Langhammer S, Ellerbrok H. A novel three-dimensional cell culture method enhances antiviral drug screening in primary human cells. Antiviral Res 2018; 150:20-29. [DOI: 10.1016/j.antiviral.2017.12.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 10/20/2017] [Accepted: 12/06/2017] [Indexed: 12/12/2022]
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21
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Reynolds MG, Guagliardo SAJ, Nakazawa YJ, Doty JB, Mauldin MR. Understanding orthopoxvirus host range and evolution: from the enigmatic to the usual suspects. Curr Opin Virol 2018; 28:108-115. [PMID: 29288901 DOI: 10.1016/j.coviro.2017.11.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/20/2017] [Accepted: 11/21/2017] [Indexed: 11/16/2022]
Abstract
In general, orthopoxviruses can be considered as falling into one of three host-utilization categories: highly specialized, single-host; broad host range; or 'cryptic', the last encompassing those viruses about which very little is known. Single-host viruses tend to exploit abundant hosts that have consistent patterns of interaction. For these viruses, observed genome reduction and loss of presumptive host-range genes is thought to be a consequence of relaxed selection. In contrast, the large genome size retained among broad host range orthopoxviruses suggests these viruses may depend on multiple host species for persistence in nature. Our understanding of the ecologic requirements of orthopoxviruses is strongly influenced by geographic biases in data collection. This hinders our ability to predict potential sources for emergence of orthopoxvirus-associated infections.
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Affiliation(s)
- Mary G Reynolds
- United States Centers for Disease Control and Prevention, Division of High-Consequence Pathogens and Pathology, Poxvirus and Rabies Branch, 1600 Clifton Rd., NE Atlanta, GA 30333, USA.
| | - Sarah Anne J Guagliardo
- United States Centers for Disease Control and Prevention, Division of High-Consequence Pathogens and Pathology, Poxvirus and Rabies Branch, 1600 Clifton Rd., NE Atlanta, GA 30333, USA; United States Centers for Disease Control and Prevention, Epidemic Intelligence Service, 1600 Clifton Rd., NE Atlanta, GA 30333, USA
| | - Yoshinori J Nakazawa
- United States Centers for Disease Control and Prevention, Division of High-Consequence Pathogens and Pathology, Poxvirus and Rabies Branch, 1600 Clifton Rd., NE Atlanta, GA 30333, USA
| | - Jeffrey B Doty
- United States Centers for Disease Control and Prevention, Division of High-Consequence Pathogens and Pathology, Poxvirus and Rabies Branch, 1600 Clifton Rd., NE Atlanta, GA 30333, USA
| | - Matthew R Mauldin
- United States Centers for Disease Control and Prevention, Division of High-Consequence Pathogens and Pathology, Poxvirus and Rabies Branch, 1600 Clifton Rd., NE Atlanta, GA 30333, USA
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22
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Dynamics of Pathological and Virological Findings During Experimental Calpox Virus Infection of Common Marmosets (Callithrix jacchus). Viruses 2017; 9:v9120363. [PMID: 29182537 PMCID: PMC5744138 DOI: 10.3390/v9120363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 11/17/2017] [Accepted: 11/20/2017] [Indexed: 12/26/2022] Open
Abstract
Experimental intranasal infection of marmosets (Callithrix jacchus) with calpox virus results in fatal disease. Route and dose used for viral inoculation of the test animals mimics the natural transmission of smallpox, thus representing a suitable model to study pathogenesis and to evaluate new vaccines against orthopoxvirus infection. However, the pathogenic mechanisms leading to death are still unclear. Therefore, our study aimed at investigating the kinetics of pathological alterations to clarify the pathogenesis in calpox virus infection. Following intranasal inoculation with two different viral doses, common marmosets were sacrificed on days 3, 5, 7, 10 and 12 post inoculation. Collected tissue was screened using histopathology, immunohistochemistry, transmission electron microscopy, and virological assays. Our data suggest that primary replication took place in nasal and bronchial epithelia followed by secondary replication in submandibular lymph nodes and spleen. Parallel to viremia at day 7, virus was detectable in many organs, mainly located in epithelial cells and macrophages, as well as in endothelial cells. Based on the onset of clinical signs, the histological and ultrastructural lesions and the immunohistochemical distribution pattern of the virus, the incubation period was defined to last 11 days, which resembles human smallpox. In conclusion, the data indicate that the calpox model is highly suitable for studying orthopoxvirus-induced disease.
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23
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Backel K, Cain C. Skin as a marker of general feline health: Cutaneous manifestations of infectious disease. J Feline Med Surg 2017; 19:1149-1165. [PMID: 29068251 PMCID: PMC10816623 DOI: 10.1177/1098612x17735764] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Practical relevance: Infectious disease in feline patients often presents a diagnostic challenge. This article reviews the most relevant viral, bacterial and protozoal diseases and their cutaneous manifestations. Many of the diseases discussed have overlapping presentations or may mimic more common noninfectious disease processes. The purpose of the article is to reinforce knowledge of common and uncommon infectious diseases, help practitioners identify possible infectious dermatoses, create a comprehensive and prioritized differential list, and provide guidance for the diagnosis of these diseases. A working knowledge of these clinical syndromes is important if what is thought to be a case of a common disease does not respond to conventional management. AUDIENCE This review is aimed at veterinarians who treat cats and especially those with an interest in feline dermatology. Tables are included to allow the reader to formulate a concise list of differential diagnoses for clinically similar presentations. The diagnostic approach to a case of ulcerative facial dermatitis is reviewed in a Case Notes quiz. Evidence base: This article includes up-to-date information regarding dermatologic manifestations of less commonly encountered feline cutaneous infectious diseases. Information has been drawn from the published, peer-reviewed literature and the most recent textbook chapters with a particular aim of describing and differentiating clinical lesions and the diagnostic approach to cutaneous disease, especially in unusual cases.
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Affiliation(s)
- Katherine Backel
- Department of Clinical Sciences and Advanced Medicine, University of Pennsylvania, School of Veterinary Medicine, 3900 Spruce Street, Philadelphia, PA 19104, USA
| | - Christine Cain
- Department of Clinical Sciences and Advanced Medicine, University of Pennsylvania, School of Veterinary Medicine, 3900 Spruce Street, Philadelphia, PA 19104, USA
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24
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Smith MAJ, Sloan KJ. Fatal necrotising bronchopneumonia in a cat due to cowpox virus infection in the absence of skin lesions. VETERINARY RECORD CASE REPORTS 2017. [DOI: 10.1136/vetreccr-2017-000516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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25
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Ricordel M, Foloppe J, Pichon C, Sfrontato N, Antoine D, Tosch C, Cochin S, Cordier P, Quemeneur E, Camus-Bouclainville C, Bertagnoli S, Erbs P. Cowpox Virus: A New and Armed Oncolytic Poxvirus. MOLECULAR THERAPY-ONCOLYTICS 2017; 7:1-11. [PMID: 28951885 PMCID: PMC5607123 DOI: 10.1016/j.omto.2017.08.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 08/17/2017] [Indexed: 12/21/2022]
Abstract
Oncolytic virus therapy has recently been recognized as a promising new therapeutic approach for cancer treatment. In this study, we are proposing for the first time to evaluate the in vitro and in vivo oncolytic capacities of the Cowpox virus (CPXV). To improve the tumor selectivity and oncolytic activity, we developed a thymidine kinase (TK)-deleted CPXV expressing the suicide gene FCU1, which converts the non-toxic prodrug 5-fluorocytosine (5-FC) into cytotoxic 5-fluorouracil (5-FU) and 5-fluorouridine-5′-monophosphate (5-FUMP). This TK-deleted virus replicated efficiently in human tumor cell lines; however, it was notably attenuated in normal primary cells, thus displaying a good therapeutic index. Furthermore, this new recombinant poxvirus rendered cells sensitive to 5-FC. In vivo, after systemic injection in mice, the TK-deleted variant caused significantly less mortality than the wild-type strain. A biodistribution study demonstrated high tumor selectivity and low accumulation in normal tissues. In human xenograft models of solid tumors, the recombinant CPXV also displayed high replication, inducing relevant tumor growth inhibition. This anti-tumor effect was improved by 5-FC co-administration. These results demonstrated that CPXV is a promising oncolytic vector capable of expressing functional therapeutic transgenes.
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Affiliation(s)
- Marine Ricordel
- TRANSGENE S.A, 400 Boulevard Gonthier d'Andernach, 67400 Illkirch, France
| | - Johann Foloppe
- TRANSGENE S.A, 400 Boulevard Gonthier d'Andernach, 67400 Illkirch, France
| | - Christelle Pichon
- TRANSGENE S.A, 400 Boulevard Gonthier d'Andernach, 67400 Illkirch, France
| | - Nathalie Sfrontato
- TRANSGENE S.A, 400 Boulevard Gonthier d'Andernach, 67400 Illkirch, France
| | - Delphine Antoine
- TRANSGENE S.A, 400 Boulevard Gonthier d'Andernach, 67400 Illkirch, France
| | - Caroline Tosch
- TRANSGENE S.A, 400 Boulevard Gonthier d'Andernach, 67400 Illkirch, France
| | - Sandrine Cochin
- TRANSGENE S.A, 400 Boulevard Gonthier d'Andernach, 67400 Illkirch, France
| | - Pascale Cordier
- TRANSGENE S.A, 400 Boulevard Gonthier d'Andernach, 67400 Illkirch, France
| | - Eric Quemeneur
- TRANSGENE S.A, 400 Boulevard Gonthier d'Andernach, 67400 Illkirch, France
| | | | | | - Philippe Erbs
- TRANSGENE S.A, 400 Boulevard Gonthier d'Andernach, 67400 Illkirch, France
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27
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Reperant LA, Brown IH, Haenen OL, de Jong MD, Osterhaus ADME, Papa A, Rimstad E, Valarcher JF, Kuiken T. Companion Animals as a Source of Viruses for Human Beings and Food Production Animals. J Comp Pathol 2016; 155:S41-53. [PMID: 27522300 DOI: 10.1016/j.jcpa.2016.07.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 07/04/2016] [Accepted: 07/07/2016] [Indexed: 01/12/2023]
Abstract
Companion animals comprise a wide variety of species, including dogs, cats, horses, ferrets, guinea pigs, reptiles, birds and ornamental fish, as well as food production animal species, such as domestic pigs, kept as companion animals. Despite their prominent place in human society, little is known about the role of companion animals as sources of viruses for people and food production animals. Therefore, we reviewed the literature for accounts of infections of companion animals by zoonotic viruses and viruses of food production animals, and prioritized these viruses in terms of human health and economic importance. In total, 138 virus species reportedly capable of infecting companion animals were of concern for human and food production animal health: 59 of these viruses were infectious for human beings, 135 were infectious for food production mammals and birds, and 22 were infectious for food production fishes. Viruses of highest concern for human health included hantaviruses, Tahyna virus, rabies virus, West Nile virus, tick-borne encephalitis virus, Crimean-Congo haemorrhagic fever virus, Aichi virus, European bat lyssavirus, hepatitis E virus, cowpox virus, G5 rotavirus, influenza A virus and lymphocytic choriomeningitis virus. Viruses of highest concern for food production mammals and birds included bluetongue virus, African swine fever virus, foot-and-mouth disease virus, lumpy skin disease virus, Rift Valley fever virus, porcine circovirus, classical swine fever virus, equine herpesvirus 9, peste des petits ruminants virus and equine infectious anaemia virus. Viruses of highest concern for food production fishes included cyprinid herpesvirus 3 (koi herpesvirus), viral haemorrhagic septicaemia virus and infectious pancreatic necrosis virus. Of particular concern as sources of zoonotic or food production animal viruses were domestic carnivores, rodents and food production animals kept as companion animals. The current list of viruses provides an objective basis for more in-depth analysis of the risk of companion animals as sources of viruses for human and food production animal health.
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Affiliation(s)
- L A Reperant
- Department of Viroscience, Erasmus Medical Centre, PO Box 2040, 3000 CA Rotterdam, The Netherlands
| | - I H Brown
- Animal and Plant Health Agency Weybridge, New Haw, Addlestone, Surrey, UK
| | - O L Haenen
- National Reference Laboratory for Fish, Shellfish and Crustacean Diseases, Central Veterinary Institute of Wageningen UR, PO Box 65, 8200 AB Lelystad, The Netherlands
| | - M D de Jong
- Department of Medical Microbiology, Academic Medical Centre, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - A D M E Osterhaus
- Department of Viroscience, Erasmus Medical Centre, PO Box 2040, 3000 CA Rotterdam, The Netherlands
| | - A Papa
- Department of Microbiology, Medical School Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - E Rimstad
- Department of Food Safety and Infection Biology, University of Life Sciences, Oslo, Norway
| | - J-F Valarcher
- Department of Virology, Immunology, and Parasitology, National Veterinary Institute, Uppsala, Sweden
| | - T Kuiken
- Department of Viroscience, Erasmus Medical Centre, PO Box 2040, 3000 CA Rotterdam, The Netherlands.
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Tamošiūnaitė A, Hoffmann D, Franke A, Schluckebier J, Tauscher K, Tischer BK, Beer M, Klopfleisch R, Osterrieder N. Histopathological and Immunohistochemical Studies of Cowpox Virus Replication in a Three-Dimensional Skin Model. J Comp Pathol 2016; 155:55-61. [PMID: 27291992 DOI: 10.1016/j.jcpa.2016.05.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 04/18/2016] [Accepted: 05/04/2016] [Indexed: 11/26/2022]
Abstract
Human cowpox virus (CPXV) infections are rare, but can result in severe and sometimes fatal outcomes. The majority of recent cases were traced back to contacts with infected domestic cats or pet rats. The aim of the present study was to evaluate a three-dimensional (3D) skin model as a possible replacement for animal experiments. We monitored CPXV lesion formation, viral gene expression and cell cycle patterns after infection of 3D skin cultures with two CPXV strains of different pathogenic potential: a recent pet rat isolate (RatPox09) and the reference Brighton red strain. Infected 3D skin cultures exhibited histological alterations that were similar to those of mammal skin infections, but there were no differences in gene expression patterns and tissue damage between the two CPXV strains in the model system. In conclusion, 3D skin cultures reflect the development of pox lesions in the skin very well, but seem not to allow differentiation between more or less virulent virus strains, a distinction that is made possible by experimental infection in suitable animal models.
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Affiliation(s)
- A Tamošiūnaitė
- Institut für Virologie, Freie Universität Berlin, Zentrum für Infektionsmedizin, Berlin, Germany
| | - D Hoffmann
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, Greifswald-Insel Riems, Germany
| | - A Franke
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, Greifswald-Insel Riems, Germany
| | - J Schluckebier
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, Greifswald-Insel Riems, Germany
| | - K Tauscher
- Department of Experimental Animal Facilities and Biorisk Management, Friedrich-Loeffler-Institute, Südufer 10, Greifswald-Insel Riems, Germany
| | - B K Tischer
- Institut für Virologie, Freie Universität Berlin, Zentrum für Infektionsmedizin, Berlin, Germany
| | - M Beer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, Greifswald-Insel Riems, Germany
| | - R Klopfleisch
- Institute for Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
| | - N Osterrieder
- Institut für Virologie, Freie Universität Berlin, Zentrum für Infektionsmedizin, Berlin, Germany.
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McInerney J, Papasouliotis K, Simpson K, English K, Cook S, Milne E, Gunn-Moore DA. Pulmonary cowpox in cats: five cases. J Feline Med Surg 2016; 18:518-25. [PMID: 25972246 PMCID: PMC11185238 DOI: 10.1177/1098612x15583344] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
CASE SERIES SUMMARY This case series documents five cases of pneumonia (with pleural effusion in three cases) caused by cowpox virus (CPxV) in domestic cats. Predisposition to pneumonia may have resulted from mixed infections in two cases (feline herpesvirus and Bordetella bronchiseptica in one cat, and Mycoplasma species in the other). RELEVANCE AND NOVEL INFORMATION As well as diagnostic confirmation by previously described methods of virus isolation from skin lesions, and demonstration of pox virions in skin samples using electron microscopy and inclusion bodies in histological preparations, this is the first report of diagnosis by virus isolation from bronchoalveolar lavage fluid or pleural fluid, and demonstration of inclusion bodies in cytological preparations. This is also the first series to report treatment with interferon omega (IFN-ω). Two cats survived, both of which had been treated with IFN-ω. As CPxV represents a serious zoonotic risk it is an important differential diagnosis of pneumonia in cats.
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Affiliation(s)
| | - Kostas Papasouliotis
- University of Bristol, School of Veterinary Sciences, Langford Veterinary Services Diagnostic Laboratories, Bristol, UK
| | | | - Kate English
- Department of Pathology and Pathogen Biology, The Royal Veterinary College, North Mymms, Hatfield, UK
| | - Simon Cook
- Clinical Science and Services, The Royal Veterinary College, North Mymms, Hatfield, UK
| | - Elspeth Milne
- Royal (Dick) School of Veterinary Studies and The Roslin Institute, The University of Edinburgh, Roslin, UK
| | - Danièlle A Gunn-Moore
- Royal (Dick) School of Veterinary Studies and The Roslin Institute, The University of Edinburgh, Roslin, UK
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Mazurkov OY, Kabanov AS, Shishkina LN, Sergeev AA, Skarnovich MO, Bormotov NI, Skarnovich MA, Ovchinnikova AS, Titova KA, Galahova DO, Bulychev LE, Sergeev AA, Taranov OS, Selivanov BA, Tikhonov AY, Zavjalov EL, Agafonov AP, Sergeev AN. New effective chemically synthesized anti-smallpox compound NIOCH-14. J Gen Virol 2016; 97:1229-1239. [PMID: 26861777 DOI: 10.1099/jgv.0.000422] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Antiviral activity of the new chemically synthesized compound NIOCH-14 (a derivative of tricyclodicarboxylic acid) in comparison with ST-246 (the condensed derivative of pyrroledione) was observed in experiments in vitro and in vivo using orthopoxviruses including highly pathogenic ones. After oral administration of NIOCH-14 to outbred ICR mice infected intranasally with 100 % lethal dose of ectromelia virus, it was shown that 50 % effective doses of NIOCH-14 and ST-246 did not significantly differ. The 'therapeutic window' varied from 1 day before infection to 6 days post-infection (p.i.) to achieve 100-60 % survival rate. The administration of NIOCH-14 and ST-246 to mice resulted in a significant reduction of ectromelia virus titres in organs examined as compared with the control and also reduced pathological changes in the lungs 6 days p.i. Oral administration of NIOCH-14 and ST-246 to ICR mice and marmots challenged with monkeypox virus as compared with the control resulted in a significant reduction of virus production in the lungs and the proportion of infected mice 7 days p.i. as well as the absence of disease in marmots. Significantly lower proportions of infected mice and virus production levels in the lungs as compared with the control were demonstrated in experiments after oral administration of NIOCH-14 and ST-246 to ICR mice and immunodeficient SCID mice challenged with variola virus 3 and 4 days p.i., respectively. The results obtained suggest good prospects for further study of the chemical compound NIOCH-14 to create a new smallpox drug on its basis.
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Affiliation(s)
- Oleg Yu Mazurkov
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Alexey S Kabanov
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Larisa N Shishkina
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Alexander A Sergeev
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Maksim O Skarnovich
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Nikolay I Bormotov
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Maria A Skarnovich
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Alena S Ovchinnikova
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Ksenya A Titova
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Darya O Galahova
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Leonid E Bulychev
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Artemiy A Sergeev
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Oleg S Taranov
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Boris A Selivanov
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry (NIOCH),Novosibirsk,Russian Federation
| | - Alexey Ya Tikhonov
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry (NIOCH),Novosibirsk,Russian Federation
| | | | - Alexander P Agafonov
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Alexander N Sergeev
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
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Doellinger J, Schaade L, Nitsche A. Comparison of the Cowpox Virus and Vaccinia Virus Mature Virion Proteome: Analysis of the Species- and Strain-Specific Proteome. PLoS One 2015; 10:e0141527. [PMID: 26556597 PMCID: PMC4640714 DOI: 10.1371/journal.pone.0141527] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 10/09/2015] [Indexed: 01/29/2023] Open
Abstract
Cowpox virus (CPXV) causes most zoonotic orthopoxvirus (OPV) infections in Europe and Northern as well as Central Asia. The virus has the broadest host range of OPV and is transmitted to humans from rodents and other wild or domestic animals. Increasing numbers of human CPXV infections in a population with declining immunity have raised concerns about the virus' zoonotic potential. While there have been reports on the proteome of other human-pathogenic OPV, namely vaccinia virus (VACV) and monkeypox virus (MPXV), the protein composition of the CPXV mature virion (MV) is unknown. This study focused on the comparative analysis of the VACV and CPXV MV proteome by label-free single-run proteomics using nano liquid chromatography and high-resolution tandem mass spectrometry (nLC-MS/MS). The presented data reveal that the common VACV and CPXV MV proteome contains most of the known conserved and essential OPV proteins and is associated with cellular proteins known to be essential for viral replication. While the species-specific proteome could be linked mainly to less genetically-conserved gene products, the strain-specific protein abundance was found to be of high variance in proteins associated with entry, host-virus interaction and protein processing.
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Affiliation(s)
- Joerg Doellinger
- Centre for Biological Threats and Special Pathogens, Highly Pathogenic Viruses (ZBS1), Robert Koch Institute, Berlin, Germany
- * E-mail:
| | - Lars Schaade
- Centre for Biological Threats and Special Pathogens, Highly Pathogenic Viruses (ZBS1), Robert Koch Institute, Berlin, Germany
| | - Andreas Nitsche
- Centre for Biological Threats and Special Pathogens, Highly Pathogenic Viruses (ZBS1), Robert Koch Institute, Berlin, Germany
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Hobi S, Mueller RS, Hill M, Nitsche A, Löscher T, Guggemos W, Ständer S, Rjosk-Dendorfer D, Wollenberg A. Neurogenic inflammation and colliquative lymphadenitis with persistent orthopox virus DNA detection in a human case of cowpox virus infection transmitted by a domestic cat. Br J Dermatol 2015; 173:535-9. [PMID: 25641516 DOI: 10.1111/bjd.13700] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/06/2015] [Indexed: 11/29/2022]
Abstract
Cowpox viruses are orthopoxviruses that may survive in the environment for years. Rodents are regarded as the primary hosts, but transmission to other species has been reported. This report describes a cowpox virus infection in a cat with subsequent transmission to its owner leading to protracted, atypical and severe clinical signs. A young cat presented with multiple crusts and plaques on the neck, muzzle and tail base. The owner developed an erythematous lesion with elevated margins, central necrosis and crust formation below the left breast, a neurogenic inflammation, enlarged regional lymph nodes, a colliquative lymphadenitis and concomitant flu-like symptoms. Cultures were taken at the first visit from the cat's lesional skin and the patient's skin, and polymerase chain reaction with sequencing of the haemagglutinin region of both were positive for cowpox virus. The patient was treated with various antibiotics and methylprednisolone and was in clinical remission after 7 months.
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Affiliation(s)
- S Hobi
- Small Animal Medicine Clinic, Centre for Clinical Veterinary Medicine, Ludwig Maximilian University, Veterinärstrasse 13, 80539, Munich, Germany
| | - R S Mueller
- Small Animal Medicine Clinic, Centre for Clinical Veterinary Medicine, Ludwig Maximilian University, Veterinärstrasse 13, 80539, Munich, Germany
| | - M Hill
- Small Animal Medicine Clinic, Centre for Clinical Veterinary Medicine, Ludwig Maximilian University, Veterinärstrasse 13, 80539, Munich, Germany
| | - A Nitsche
- Robert Koch Institute, Consultant Laboratory for Pox Virus, Centre for Biologic Threats and Special Pathogens 1, Berlin, Germany
| | - T Löscher
- Department of Infectious Diseases and Tropical Medicine, University Hospital, Ludwig Maximilian University, Veterinärstrasse 13, 80539, Munich, Germany
| | - W Guggemos
- Department of Infectious Diseases and Tropical Medicine, Schwabing Hospital, Munich, Germany
| | - S Ständer
- Department of Dermatology, University of Münster, Münster, Germany
| | - D Rjosk-Dendorfer
- Department of Clinical Radiology, Ludwig Maximilian University, Veterinärstrasse 13, 80539, Munich, Germany
| | - A Wollenberg
- Department of Dermatology and Allergology, Ludwig Maximilian University, Veterinärstrasse 13, 80539, Munich, Germany
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Vora NM, Li Y, Geleishvili M, Emerson GL, Khmaladze E, Maghlakelidze G, Navdarashvili A, Zakhashvili K, Kokhreidze M, Endeladze M, Mokverashvili G, Satheshkumar PS, Gallardo-Romero N, Goldsmith CS, Metcalfe MG, Damon I, Maes EF, Reynolds MG, Morgan J, Carroll DS. Human infection with a zoonotic orthopoxvirus in the country of Georgia. N Engl J Med 2015; 372:1223-30. [PMID: 25806914 PMCID: PMC4692157 DOI: 10.1056/nejmoa1407647] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
During 2013, cutaneous lesions developed in two men in the country of Georgia after they were exposed to ill cows. The men had never received vaccination against smallpox. Tests of lesion material with the use of a quantitative real-time polymerase-chain-reaction assay for non-variola virus orthopoxviruses were positive, and DNA sequence analysis implicated a novel orthopoxvirus species. During the ensuing epidemiologic investigation, no additional human cases were identified. However, serologic evidence of exposure to an orthopoxvirus was detected in cows in the patients' herd and in captured rodents and shrews. A third case of human infection that occurred in 2010 was diagnosed retrospectively during testing of archived specimens that were originally submitted for tests to detect anthrax. Orthopoxvirus infection should be considered in persons in whom cutaneous lesions develop after contact with animals.
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Affiliation(s)
- Neil M Vora
- From the Epidemic Intelligence Service (N.M.V.), Division of High-Consequence Pathogens and Pathology (N.M.V., Y.L., G.L.E., P.S.S., N.G.-R., C.S.G., M.G.M., I.D., M.G.R., D.S.C.), and the Division of Global Health Protection (N.M.V., M.G., E.F.M., J.M.), Centers for Disease Control and Prevention (CDC), Atlanta; CDC Georgia Country Office (M.G., J.M.), National Center for Disease Control and Public Health (E.K., A.N., K.Z.), Laboratory of the Ministry of Agriculture (G. Maghlakelidze, M.K.), and Infectious Diseases, AIDS, and Clinical Immunology Research Center (M.E.), Tbilisi, and National Food Agency, Tianeti (G. Mokverashvili) - all in Georgia
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Maksyutov RA, Gavrilova EV, Meyer H, Shchelkunov SN. Real-time PCR assay for specific detection of cowpox virus. J Virol Methods 2014; 211:8-11. [PMID: 25455900 DOI: 10.1016/j.jviromet.2014.10.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 10/06/2014] [Accepted: 10/10/2014] [Indexed: 11/18/2022]
Abstract
The species cowpox virus (CPXV), genus Orthopoxvirus (OPV), consists of isolates highly variable in their biological properties and their genotypes. A TaqMan PCR assay for the specific detection of CPXV DNA based on sequences of the ORF D11L has been developed recently. (Gavrilova et al., 2010; Shchelkunov et al., 2011); however, a rather limited panel of CPXV stains has been used. When a much larger panel of 47 CPXV DNAs has been tested, three strains could not be amplified at all because of large deletions in their respective ORF D11L. In addition, a deletion of 23bp led to low-efficiency detection of five other CPXV strains. To solve this problem a new primer/probe combinations was selected based on sequences of ORF D8L, and a new real-time PCR method for (i) a genus-specific detection of OPVs and (ii) a simultaneous CPXV-specific differentiation is described in this study. The specificity and sensitivity were assessed by analyzing DNA of 67 strains belonging to human-pathogenic OPV species, including variola virus, as well as specimens of CPXV-infected mice.
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Affiliation(s)
- Rinat A Maksyutov
- State Research Center of Virology and Biotechnology "VECTOR", Koltsovo, Novosibirsk Region 630559, Russia.
| | - Elena V Gavrilova
- State Research Center of Virology and Biotechnology "VECTOR", Koltsovo, Novosibirsk Region 630559, Russia.
| | - Hermann Meyer
- Institut für Mikrobiologie der Bundeswehr, München 80937, Germany.
| | - Sergei N Shchelkunov
- State Research Center of Virology and Biotechnology "VECTOR", Koltsovo, Novosibirsk Region 630559, Russia.
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36
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TURNER AK, BELDOMENICO PM, BOWN K, BURTHE SJ, JACKSON JA, LAMBIN X, BEGON M. Host-parasite biology in the real world: the field voles of Kielder. Parasitology 2014; 141:997-1017. [PMID: 24612619 PMCID: PMC4047648 DOI: 10.1017/s0031182014000171] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 12/20/2013] [Accepted: 01/22/2014] [Indexed: 12/21/2022]
Abstract
Research on the interactions between the field voles (Microtus agrestis) of Kielder Forest and their natural parasites dates back to the 1930s. These early studies were primarily concerned with understanding how parasites shape the characteristic cyclic population dynamics of their hosts. However, since the early 2000s, research on the Kielder field voles has expanded considerably and the system has now been utilized for the study of host-parasite biology across many levels, including genetics, evolutionary ecology, immunology and epidemiology. The Kielder field voles therefore represent one of the most intensely and broadly studied natural host-parasite systems, bridging theoretical and empirical approaches to better understand the biology of infectious disease in the real world. This article synthesizes the body of work published on this system and summarizes some important insights and general messages provided by the integrated and multidisciplinary study of host-parasite interactions in the natural environment.
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Affiliation(s)
- A. K. TURNER
- Institute of Integrative Biology, University of
Liverpool, UK
| | - P. M. BELDOMENICO
- Institute of Integrative Biology, University of
Liverpool, UK
- National Centre for Zoonosis Research, University
of Liverpool, UK
- Laboratorio de Ecología de Enfermedades,
Instituto de Ciencias Veterinarias del Litoral, Universidad Nacional del
Litoral – Consejo de Investigaciones Científicas y Técnicas (UNL – CONICET),
Esperanza, Argentina
| | - K. BOWN
- Institute of Integrative Biology, University of
Liverpool, UK
- School of Environment & Life Sciences,
University of Salford, UK
| | - S. J. BURTHE
- Institute of Integrative Biology, University of
Liverpool, UK
- National Centre for Zoonosis Research, University
of Liverpool, UK
- Centre for Ecology & Hydrology, Natural
Environmental Research Council, Edinburgh,
UK
| | - J. A. JACKSON
- Institute of Integrative Biology, University of
Liverpool, UK
- Institute of Biological, Environmental and Rural
Sciences, University of Aberystwyth, UK
| | - X. LAMBIN
- School of Biological Sciences, University of
Aberdeen, UK
| | - M. BEGON
- Institute of Integrative Biology, University of
Liverpool, UK
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Goulding J, Abboud G, Tahiliani V, Desai P, Hutchinson TE, Salek-Ardakani S. CD8 T cells use IFN-γ to protect against the lethal effects of a respiratory poxvirus infection. THE JOURNAL OF IMMUNOLOGY 2014; 192:5415-25. [PMID: 24748494 DOI: 10.4049/jimmunol.1400256] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
CD8 T cells are a key component of immunity to many viral infections. They achieve this through using an array of effector mechanisms, but precisely which component/s are required for protection against a respiratory orthopox virus infection remains unclear. Using a model of respiratory vaccinia virus infection in mice, we could specifically determine the relative contribution of perforin, TRAIL, and IFN-γ-mediated pathways in protection against virus induced morbidity and mortality. Unexpectedly, we observed that protection against death was mediated by IFN-γ without any involvement of the perforin or TRAIL-dependent pathways. IFN-γ mRNA and protein levels in the lung peaked between days 3 and 6 postinfection. This enhanced response coincided with the emergence of virus-specific CD8 T cells in the lung and the cessation of weight loss. Transfer experiments indicated that CD8 T cell-autonomous expression of IFN-γ restricts virus-induced lung pathology and dissemination to visceral tissues and is necessary for clearance of virus. Most significantly, we show that CD8 T cell-derived IFN-γ is sufficient to protect mice in the absence of CD4 and B-lymphocytes. Thus, our findings reveal a previously unappreciated mechanism by which effector CD8 T cells afford protection against a highly virulent respiratory orthopox virus infection.
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Affiliation(s)
- John Goulding
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Georges Abboud
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Vikas Tahiliani
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Pritesh Desai
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Tarun E Hutchinson
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Shahram Salek-Ardakani
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610
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McDaniel CJ, Cardwell DM, Moeller RB, Gray GC. Humans and cattle: a review of bovine zoonoses. Vector Borne Zoonotic Dis 2014; 14:1-19. [PMID: 24341911 PMCID: PMC3880910 DOI: 10.1089/vbz.2012.1164] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Infectious disease prevention and control has been among the top public health objectives during the last century. However, controlling disease due to pathogens that move between animals and humans has been challenging. Such zoonotic pathogens have been responsible for the majority of new human disease threats and a number of recent international epidemics. Currently, our surveillance systems often lack the ability to monitor the human-animal interface for emergent pathogens. Identifying and ultimately addressing emergent cross-species infections will require a "One Health" approach in which resources from public veterinary, environmental, and human health function as part of an integrative system. Here we review the epidemiology of bovine zoonoses from a public health perspective.
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Affiliation(s)
- Clinton J. McDaniel
- College of Public Health and Health Professions and Emerging Pathogens Institute, University of Florida, Gainesville, Florida
| | - Diana M. Cardwell
- College of Public Health and Health Professions and Emerging Pathogens Institute, University of Florida, Gainesville, Florida
| | - Robert B. Moeller
- California Animal Health and Food Safety Laboratory System, Tulare Laboratory, University of California, Tulare, California
| | - Gregory C. Gray
- College of Public Health and Health Professions and Emerging Pathogens Institute, University of Florida, Gainesville, Florida
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Bourquain D, Dabrowski PW, Nitsche A. Comparison of host cell gene expression in cowpox, monkeypox or vaccinia virus-infected cells reveals virus-specific regulation of immune response genes. Virol J 2013; 10:61. [PMID: 23425254 PMCID: PMC3599072 DOI: 10.1186/1743-422x-10-61] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Accepted: 02/08/2013] [Indexed: 12/31/2022] Open
Abstract
Background Animal-borne orthopoxviruses, like monkeypox, vaccinia and the closely related cowpox virus, are all capable of causing zoonotic infections in humans, representing a potential threat to human health. The disease caused by each virus differs in terms of symptoms and severity, but little is yet know about the reasons for these varying phenotypes. They may be explained by the unique repertoire of immune and host cell modulating factors encoded by each virus. In this study, we analysed the specific modulation of the host cell’s gene expression profile by cowpox, monkeypox and vaccinia virus infection. We aimed to identify mechanisms that are either common to orthopoxvirus infection or specific to certain orthopoxvirus species, allowing a more detailed description of differences in virus-host cell interactions between individual orthopoxviruses. To this end, we analysed changes in host cell gene expression of HeLa cells in response to infection with cowpox, monkeypox and vaccinia virus, using whole-genome gene expression microarrays, and compared these to each other and to non-infected cells. Results Despite a dominating non-responsiveness of cellular transcription towards orthopoxvirus infection, we could identify several clusters of infection-modulated genes. These clusters are either commonly regulated by orthopoxvirus infection or are uniquely regulated by infection with a specific orthopoxvirus, with major differences being observed in immune response genes. Most noticeable was an induction of genes involved in leukocyte migration and activation in cowpox and monkeypox virus-infected cells, which was not observed following vaccinia virus infection. Conclusion Despite their close genetic relationship, the expression profiles induced by infection with different orthopoxviruses vary significantly. It may be speculated that these differences at the cellular level contribute to the individual characteristics of cowpox, monkeypox and vaccinia virus infections in certain host species.
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Affiliation(s)
- Daniel Bourquain
- Centre for Biological Threats and Special Pathogens 1, Robert Koch Institute, Nordufer 20, Berlin, Germany.
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Duraffour S, Mertens B, Meyer H, van den Oord JJ, Mitera T, Matthys P, Snoeck R, Andrei G. Emergence of cowpox: study of the virulence of clinical strains and evaluation of antivirals. PLoS One 2013; 8:e55808. [PMID: 23457480 PMCID: PMC3574090 DOI: 10.1371/journal.pone.0055808] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Accepted: 01/02/2013] [Indexed: 11/18/2022] Open
Abstract
The last years, cowpox infections are being increasingly reported through Eurasia. Cowpox viruses (CPXVs) have been reported to have different genotypes and may be subdivided in at least five genetically distinct monophyletic clusters. However, little is known about their in vitro and in vivo features. In this report, five genetically diverse CPXVs, including one reference strain (CPXV strain Brighton) and four clinical isolates from human and animal cases, were compared with regard to growth in cells, pathogenicity in mice and inhibition by antivirals. While all CPXVs replicated similarly in vitro and showed comparable antiviral susceptibility, marked discrepancies were seen in vivo, including differences in virulence with recorded mortality rates of 0%, 20% and 100%. The four CPXV clinical isolates appeared less pathogenic than two reference strains, CPXV Brighton and vaccinia virus Western-Reserve. Disease severity seemed to correlate with high viral DNA loads in several organs, virus titers in lung tissues and levels of IL-6 cytokine in the sera. Our study highlighted that the species CPXV consists of viruses that not only differ considerably in their genotypes but also in their in vivo phenotypes, indicating that CPXVs should not be longer classified as a single species. Lung virus titers and IL-6 cytokine level in mice may be used as biomarkers for predicting disease severity. We further demonstrated the potential benefit of cidofovir, CMX001 and ST-246 use as antiviral therapy.
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Affiliation(s)
- Sophie Duraffour
- Rega Institute, Laboratory of Virology and Chemotherapy, KU Leuven, Leuven, Belgium.
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Bourquain D, Nitsche A. Cowpox virus but not Vaccinia virus induces secretion of CXCL1, IL-8 and IL-6 and chemotaxis of monocytes in vitro. Virus Res 2012. [PMID: 23207068 PMCID: PMC9533815 DOI: 10.1016/j.virusres.2012.11.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Orthopoxviruses are large DNA viruses which can cause disease in numerous host species. Today, after eradication of Variola virus and the end of vaccination against smallpox, zoonotic Orthopoxvirus infections are emerging as potential threat to human health. The most common causes of zoonotic Orthopoxvirus infections are Cowpox virus in Europe, Monkeypox virus in Africa and Vaccinia virus in South America. Although all three viruses are genetically and antigenically closely related, the human diseases caused by each virus differ considerably. This observation may reflect different capabilities of these viruses to modulate the hosts' immune response. Therefore, we aimed at characterizing the specific cytokine response induced by Orthopoxvirus infection in vitro. We analysed the gene expression of nine human pro-inflammatory cytokines and chemokines in response to infection of HeLa cells and could identify an upregulation of cytokine gene expression following Cowpox virus and Monkeypox virus infection but not following Vaccinia virus infection. This was verified by a strong induction of especially IL-6, IL-8 and CXCL1 secretion into the cell culture supernatant following Cowpox virus infection. We could further show that supernatants derived from Cowpox virus-infected cells exhibit an increased chemotactic activity towards monocytic and macrophage-like cells. On the one hand, increased cytokine secretion by Cowpox virus-infected cells and subsequent monocyte/macrophage recruitment may contribute to host defence and facilitate clearance of the infection. On the other hand, given the assumed important role of circulating macrophages in viral spread, this may also point towards a mechanism facilitating delivery of the virus to further tissues in vivo.
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Affiliation(s)
- Daniel Bourquain
- Centre for Biological Security 1, Robert Koch Institute, Nordufer 20, 13353 Berlin, Germany.
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McCollum AM, Austin C, Nawrocki J, Howland J, Pryde J, Vaid A, Holmes D, Weil MR, Li Y, Wilkins K, Zhao H, Smith SK, Karem K, Reynolds MG, Damon IK. Investigation of the first laboratory-acquired human cowpox virus infection in the United States. J Infect Dis 2012; 206:63-8. [PMID: 22539811 DOI: 10.1093/infdis/jis302] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Cowpox virus is an Orthopoxvirus that can cause infections in humans and a variety of animals. Infections occur in Eurasia; infections in humans and animals have not been reported in the United States. This report describes the occurrence of the first known human case of laboratory-acquired cowpox virus infection in the United States and the ensuing investigation. METHODS The patient and laboratory personnel were interviewed, and laboratory activities were reviewed. Real-time polymerase chain reaction (PCR) and serologic assays were used to test the patient's specimens. PCR assays were used to test specimens obtained during the investigation. RESULTS A specimen from the patient's lesion tested positive for cowpox virus DNA. Genome sequencing revealed a recombinant region consistent with a strain of cowpox virus stored in the research laboratory's freezer. Cowpox virus contamination was detected in 6 additional laboratory stocks of viruses. Orthopoxvirus DNA was present in 3 of 20 environmental swabs taken from laboratory surfaces. CONCLUSIONS The handling of contaminated reagents or contact with contaminated surfaces was likely the mode of transmission. Delays in recognition and diagnosis of this infection in a laboratory researcher underscore the importance of a thorough patient history-including occupational information-and laboratory testing in facilitating a prompt investigation and application of control and remediation measures.
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Affiliation(s)
- Andrea M McCollum
- Poxvirus Team, Poxvirus and Rabies Branch, Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
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Infectious Diseases. THE CAT 2012. [PMCID: PMC7161403 DOI: 10.1016/b978-1-4377-0660-4.00033-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tack DM, Reynolds MG. Zoonotic Poxviruses Associated with Companion Animals. Animals (Basel) 2011; 1:377-95. [PMID: 26486622 PMCID: PMC4513476 DOI: 10.3390/ani1040377] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Revised: 11/02/2011] [Accepted: 11/15/2011] [Indexed: 11/18/2022] Open
Abstract
Simple Summary Contemporary enthusiasm for the ownership of exotic animals and hobby livestock has created an opportunity for the movement of poxviruses—such as monkeypox, cowpox, and orf—outside their traditional geographic range bringing them into contact with atypical animal hosts and groups of people not normally considered at risk. It is important that pet owners and practitioners of human and animal medicine develop a heightened awareness for poxvirus infections and understand the risks that can be associated with companion animals and livestock. This article reviews the epidemiology and clinical features of zoonotic poxviruses that are most likely to affect companion animals. Abstract Understanding the zoonotic risk posed by poxviruses in companion animals is important for protecting both human and animal health. The outbreak of monkeypox in the United States, as well as current reports of cowpox in Europe, point to the fact that companion animals are increasingly serving as sources of poxvirus transmission to people. In addition, the trend among hobbyists to keep livestock (such as goats) in urban and semi-urban areas has contributed to increased parapoxvirus exposures among people not traditionally considered at high risk. Despite the historic notoriety of poxviruses and the diseases they cause, poxvirus infections are often missed. Delays in diagnosing poxvirus-associated infections in companion animals can lead to inadvertent human exposures. Delays in confirming human infections can result in inappropriate treatment or prolonged recovery. Early recognition of poxvirus-associated infections and application of appropriate preventive measures can reduce the spread of virus between companion animals and their owners. This review will discuss the epidemiology and clinical features associated with the zoonotic poxvirus infections most commonly associated with companion animals.
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Affiliation(s)
- Danielle M Tack
- Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
- Poxvirus and Rabies Branch, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
| | - Mary G Reynolds
- Poxvirus and Rabies Branch, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
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Favier AL, Flusin O, Lepreux S, Fleury H, Labrèze C, Georges A, Crance JM, Boralevi F. Necrotic ulcerated lesion in a young boy caused by cowpox virus infection. Case Rep Dermatol 2011; 3:186-94. [PMID: 22110431 PMCID: PMC3219450 DOI: 10.1159/000331426] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The case presented here points towards the fact that skin lesion observed with a cowpox virus is a rare event but should be considered more as the number of cases has increased in the last years. Cowpox virus (CPXV) belongs to the Poxviridae family. The transmission of CPXV to humans is caused by wild rodents or mostly by domestic animals and pet rats. In humans, CPXV is responsible for localized skin lesions regularly accompanied by lymphadenopathy. The lesions remain localized but self-inoculation from the primary lesions could occur. Then physicians have to be vigilant concerning bandages. In this case report, a necrotic and ulcerated lesion of a CPXV infection in a young boy is reported. The CPXV was possibly transmitted by wild rodents. The importance of performing the diagnosis is also pointed out. Virus information was obtained from phylogenetic analyses showing that the CPXV isolate was distinct from outbreaks of human cowpox which occurred in 2009 in France and Germany but was close to the CPXV Brighton Red strain. For several years, cases of viral zoonosis caused by CPXV have increased and physicians should be made aware that people could be infected without history of direct contact with animals.
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Affiliation(s)
- Anne-Laure Favier
- Unité de Virologie, Institut de Recherche Biomédicale des Armées, IRBA, Antenne de la Tronche-CRSSA, Grenoble, Bordeaux, France
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Johnson RF, Yellayi S, Cann JA, Johnson A, Smith AL, Paragas J, Jahrling PB, Blaney JE. Cowpox virus infection of cynomolgus macaques as a model of hemorrhagic smallpox. Virology 2011; 418:102-12. [PMID: 21840027 DOI: 10.1016/j.virol.2011.07.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Revised: 07/15/2011] [Accepted: 07/18/2011] [Indexed: 01/27/2023]
Abstract
Hemorrhagic smallpox was a rare but severe manifestation of variola virus infection that resulted in nearly 100% mortality. Here we describe intravenous (IV) inoculation of cowpox virus Brighton Red strain in cynomolgus macaques (Macaca fascicularis) which resulted in disease similar in presentation to hemorrhagic smallpox in humans. IV inoculation of macaques resulted in a uniformly lethal disease within 12 days post-inoculation in two independent experiments. Clinical observations and hematological and histopathological findings support hemorrhagic disease. Cowpox virus replicated to high levels in blood (8.0-9.0 log(10) gene copies/mL) and tissues including lymph nodes, thymus, spleen, bone marrow, and lungs. This unique model of hemorrhagic orthopoxvirus infection provides an accessible means to further study orthopoxvirus pathogenesis and to identify virus-specific and nonspecific therapies. Such studies will serve to complement the existing nonhuman primate models of more classical poxviral disease.
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Affiliation(s)
- Reed F Johnson
- Emerging Viral Pathogens Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
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Shchelkunov SN, Shcherbakov DN, Maksyutov RA, Gavrilova EV. Species-specific identification of variola, monkeypox, cowpox, and vaccinia viruses by multiplex real-time PCR assay. J Virol Methods 2011; 175:163-9. [DOI: 10.1016/j.jviromet.2011.05.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Revised: 04/26/2011] [Accepted: 05/03/2011] [Indexed: 01/13/2023]
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Mätz-Rensing K, Stahl-Hennig C, Kramski M, Pauli G, Ellerbrok H, Kaup FJ. The pathology of experimental poxvirus infection in common marmosets (Callithrix jacchus): further characterization of a new primate model for orthopoxvirus infections. J Comp Pathol 2011; 146:230-42. [PMID: 21783202 DOI: 10.1016/j.jcpa.2011.06.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Revised: 05/18/2011] [Accepted: 06/06/2011] [Indexed: 10/18/2022]
Abstract
Zoonotic orthopoxvirus (OPV) can induce severe disease in man and the virus has potential for use in bioterrorism. New vaccines and therapeutics against OPV infections must be tested in animal models. The aim of this study was to characterize the clinical course and pathology of a new OPV isolate, calpox virus, which is infectious in marmosets. Infection experiments were performed with 28 common marmosets (Callithrix jacchus) exposed to different challenge doses of calpox virus by the intravenous, oropharyngeal and intranasal (IN) routes. The median marmoset IN infectious dose corresponded to 8.3 × 10(2)plaque forming units of calpox virus. Infected animals developed reproducible clinical signs and died within 4-15 days post infection. Characteristic pox-like lesions developed in affected organs, particularly in the skin, mucous membranes, lymph nodes, liver and spleen. Calpox virus disease progression and pathological findings in the common marmoset appear to be consistent with lethal OPV infections in man and in other non-human primate (NHP) models. IN inoculation with low virus doses mimics the natural route of the human variola virus infection. Thus, the marmoset model of calpox virus infection can be considered to be relevant to investigation of the mechanisms of OPV pathogenesis and pathology and for the evaluation of new vaccines and antiviral therapies.
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Elsendoorn A, Agius G, Le Moal G, Aajaji F, Favier AL, Wierzbicka-Hainault E, Béraud G, Flusin O, Crance JM, Roblot F. Severe ear chondritis due to cowpox virus transmitted by a pet rat. J Infect 2011; 63:391-3. [PMID: 21723880 DOI: 10.1016/j.jinf.2011.06.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Accepted: 06/04/2011] [Indexed: 11/24/2022]
Abstract
We describe a case of cowpox virus infection leading to severe acute inflammation and chondritis of the outer ear, complicated by local necrosis and facial cellulitis. Secondary lesions occurred on a finger and the abdomen. Apart from scarring, outcome was favorable after repeated surgical excision of necrotic tissue.
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Affiliation(s)
- Antoine Elsendoorn
- Service des Maladies Infectieuses et Tropicales, Centre Hospitalier Universitaire La Milétrie, Poitiers, France.
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