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Shan K, Montalvo-Toledo LA, Shifera AS, Santiago EA. A Severe and Prolonged Case of Ocular Monkeypox Without Systemic Manifestations. Cornea 2024:00003226-990000000-00573. [PMID: 38870146 DOI: 10.1097/ico.0000000000003574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 04/16/2024] [Indexed: 06/15/2024]
Abstract
PURPOSE The objective of this study was to present a rare case of prolonged and severe ocular monkeypox virus infection in the absence of systemic manifestations. METHODS This was a single case report. RESULTS A 60-year-old man, having been symptomatic for 9 days, presented with several umbilicated, ulcerated papules on the left cheek, left side of the nose, and left upper eyelid, along with marked follicular conjunctivitis and multiple conjunctival ulcerations. Two weeks after presentation, he developed an irregular, 360° circumferential opacity in the peripheral cornea that progressed to a large epithelial defect with corneal thinning. Although the initial eyelid lesions and conjunctivitis quickly resolved, the patient experienced nonresolving corneal inflammation manifest with peripheral corneal thinning, epithelial defects, and stromal keratitis. Four months after presentation, with the presumptive diagnosis of peripheral ulcerative keratitis, the patient was treated with intravenous steroids and immunosuppressive treatment, after which the ocular surface inflammation improved. However, the inflammation recurred 12 weeks later, and the patient developed severe perilimbal necrotizing conjunctivitis, followed by recurrence of ulcerated nodular eyelid lesions. Eight months after presentation, nucleic acid amplification tests from eyelid lesion swabs returned positive for nonvariola Orthopoxviruses, which led to the diagnosis of mpox. Within 2 weeks of beginning antiviral treatment with systemic tecovirimat and cidofovir and topical trifluridine, the eyelid lesions, conjunctivitis, and corneal inflammation resolved. CONCLUSIONS We present an unusual and challenging case of ocular mpox with severe ocular surface inflammation including peripheral corneal thinning and epithelial defects, without systemic disease. Initiation of antiviral treatment resulted in a quick resolution of the ocular disease.
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Affiliation(s)
- Kevin Shan
- Flaum Eye Institute, University of Rochester Medical Center, Rochester, NY
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2
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Nguyen M, Doan T, Seitzman GD. Ocular manifestations of mpox. Curr Opin Ophthalmol 2024:00055735-990000000-00175. [PMID: 38847744 DOI: 10.1097/icu.0000000000001066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
PURPOSE OF REVIEW To highlight the clinical features of mpox with an emphasis on ocular manifestations and to review treatment options for this re-emerging infectious disease. RECENT FINDINGS Ocular involvement of mpox varies by clade. The most recent 2022 outbreak appears to be associated with fewer conjunctivitis cases compared to previous outbreaks. However, the ocular findings occurring during this newly emerging clade can be visually threatening and include cases of keratitis, rapidly progressing scleritis, and necrotizing periorbital rashes. SUMMARY Ocular mpox is an important clinical feature of systemic mpox virus (MPXV) infection. Heightened clinical suspicion allows for a timely diagnosis and the initiation of antiviral treatment, when appropriate. Randomized clinical trials for mpox systemic and ocular treatment efficacy are lacking. Prior clinical experience with smallpox and in-vitro mpox data support the use of systemic antivirals such as tecovirimat, cidofovir, brincidofovir and topical use of trifluridine in ocular mpox management, though treatment-resistant infection can occur and portend a poor prognosis.
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Affiliation(s)
- Minh Nguyen
- Francis I. Proctor Foundation, Department of Ophthalmology
- Department of Ophthalmology, University of California, San Francisco, California, USA
| | - Thuy Doan
- Francis I. Proctor Foundation, Department of Ophthalmology
- Department of Ophthalmology, University of California, San Francisco, California, USA
| | - Gerami D Seitzman
- Francis I. Proctor Foundation, Department of Ophthalmology
- Department of Ophthalmology, University of California, San Francisco, California, USA
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3
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Domínguez García L, Gutierrez-Arroyo A, Miguel-Buckley R, Martin Ucero A, Cantizani J, Boto-de-Los-Bueis A. Persistent and Severe Mpox Keratitis Despite Systemic and Topical Treatment. Cornea 2024; 43:777-783. [PMID: 38456834 DOI: 10.1097/ico.0000000000003485] [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: 03/10/2023] [Accepted: 12/12/2023] [Indexed: 03/09/2024]
Abstract
PURPOSE The purpose of this study was to report a case of peripheral ulcerative keratitis in a patient diagnosed with corneal polymerase chain reaction (PCR) and a positive mpox culture. METHODS This is a case report. RESULTS An immunocompetent 54-year-old man was diagnosed with conjunctivitis in his left eye 15 days after being diagnosed with mucocutaneous monkeypox. He received treatment with dexamethasone 0.1% and tobramycin 0.3% eye drops for 2 weeks. Two weeks after discontinuing this treatment, he developed peripheral ulcerative keratitis and a paracentral epithelial defect. Mpox keratitis was diagnosed by corneal culture and PCR. Corneal inflammation persisted for more than 6 months, manifested as corneal epithelial defect, limbitis, endotheliitis, neurotrophic changes, and trabeculitis. This persistence was observed alongside positive corneal PCR results, despite undergoing 2 courses of trifluorothymidine, 2 courses of oral tecovirimat, and intravenous cidofovir. An amniotic membrane transplantation was then performed. CONCLUSIONS Persistent corneal pain and replication are possible with the mpox virus, even in immunocompetent patients. Having received treatment with topical corticosteroids before antiviral treatment for the pox virus may have contributed to the severity and persistence of the clinical condition. Cycle threshold PCR values can be used to support the diagnosis and monitor treatment effectiveness.
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Affiliation(s)
| | | | - Rosa Miguel-Buckley
- Infectious Diseases Unit, Internal Medicine Department, La Paz University Hospital, IdiPAZ, Center for Biomedical Research in Infectious Diseases Network (CIBERINFEC), Madrid, Spain; and
| | - Ana Martin Ucero
- Department of Ophthalmology, La Paz University Hospital, Madrid, Spain
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Acharya A, Kumar N, Singh K, Byrareddy SN. "Mpox in MSM: Tackling Stigma, Minimizing Risk Factors, Exploring Pathogenesis, and Treatment Approaches". Biomed J 2024:100746. [PMID: 38734408 DOI: 10.1016/j.bj.2024.100746] [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: 11/20/2023] [Revised: 04/07/2024] [Accepted: 05/05/2024] [Indexed: 05/13/2024] Open
Abstract
Mpox is a zoonotic disease caused by the monkeypox virus (MPV), primarily found in Central and West African countries. The typical presentation of the disease before the 2022 mpox outbreak includes a febrile prodrome 5-13 days post-exposure, accompanied by lymphadenopathy, malaise, headache, and muscle aches. Unexpectedly, during the 2022 outbreak, several cases of atypical presentations of the disease were reported, such as the absence of prodromal symptoms and the presence of genital skin lesions suggestive of sexual transmission. As per the World Health Organization (WHO), as of March 20, 2024, 94,707 cases of mpox were reported worldwide, resulting in 181 deaths (22 in African endemic regions and 159 in non-endemic countries). The United States Centers for Disease Control and Prevention (CDC) reports a total of 32,063 cases (33.85% of total cases globally), with 58 deaths (32.04% of global deaths) due to mpox. Person-to-person transmission of mpox can occur through respiratory droplets and sustained close contact. However, during the 2022 outbreak of mpox, a high incidence of anal and perianal lesions among MSMs indicated sexual transmission of MPV as a major route of transmission. Since MSMs are disproportionately at risk for HIV transmission, this review discusses the risk factors, transmission patterns, pathogenesis, vaccine, and treatment options for mpox among MSM and people living with HIV (PLWH). Furthermore, we provide a brief perspective on the evolution of the MPV in immunocompromised people like PLWH.
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Affiliation(s)
- Arpan Acharya
- Department of Pharmacology and Experimental Neuroscience, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Narendra Kumar
- Department of Pharmacology and Experimental Neuroscience, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Kamal Singh
- Department of Veterinary Pathobiology, College of Veterinary Medicine, and Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Siddappa N Byrareddy
- Department of Pharmacology and Experimental Neuroscience, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA; Department of Genetics, Cell Biology and Anatomy, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA; Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA.
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5
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Androudi S, Kaufman AR, Kouvalakis A, Mitsios A, Sapounas S, Al-Khatib D, Schibler M, Pineda R, Baglivo E. Non-Healing Corneal Ulcer and Uveitis Following Monkeypox Disease: Diagnostic and Therapeutic Challenges. Ocul Immunol Inflamm 2024; 32:253-258. [PMID: 37140328 DOI: 10.1080/09273948.2023.2202746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 04/10/2023] [Indexed: 05/05/2023]
Abstract
PURPOSE The ocular manifestations of Monkeypox virus (Mpox) infection remain incompletely characterized. Our goal is to present a case series of non-healing corneal ulcers with associated uveitis caused by Mpox infection as well as management recommendations for Mpox-related ophthalmic disease (MPXROD). METHODS Retrospective case series. RESULTS Two male patients with recent hospitalization for systemic Mpox infection presented with non-healing corneal ulcer associated with anterior uveitis and severe IOP elevation. Despite initiation of conservative medical treatment including corticosteroid treatment for uveitis, in both cases, there was clinical progression with enlarging cornea lesions. Both cases received oral tecovirimat with complete healing of the corneal lesion. CONCLUSIONS Corneal ulcer and anterior uveitis are rare complications of Mpox infection. Although Mpox disease is generally anticipated to be self-limited, tecovirimat may be an effective intervention in poorly healing Mpox keratitis. Corticosteroids should be used with caution in Mpox uveitis, as they might lead to worsening infection.
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Affiliation(s)
- Sofia Androudi
- Department of Ophthalmology, University Hospital of Larissa, Larissa, Greece
- Department of Medicine, University of Thessaly, Volos, Greece
| | - Aaron R Kaufman
- Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, Massachusetts, USA
| | | | - Andreas Mitsios
- Department of Medicine, University of Thessaly, Volos, Greece
| | - Spyros Sapounas
- Department of Epidemiological Surveillance and Intervention for Infectious Diseases, National Public Health Organization of Greece, Athens, Greece
| | - Danial Al-Khatib
- Department of Ophthalmology, Clinique de L'Oeil, Geneva, Switzerland
| | - Manuel Schibler
- Infectious Disease Department, Geneva University Hospital, Geneva, Switzerland
| | - Roberto Pineda
- Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, Massachusetts, USA
| | - Edoardo Baglivo
- Department of Ophthalmology, Clinique de L'Oeil, Geneva, Switzerland
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Asadi Noghabi F, G. Rizk J, Makkar D, Roozbeh N, Ghelichpour S, Zarei A. Managing Monkeypox Virus Infections: A Contemporary Review. IRANIAN JOURNAL OF MEDICAL SCIENCES 2024; 49:1-9. [PMID: 38322157 PMCID: PMC10839137 DOI: 10.30476/ijms.2022.96738.2837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/30/2022] [Accepted: 11/22/2022] [Indexed: 02/08/2024]
Abstract
Monkeypox is an infectious and contagious zoonotic disease caused by the Orthopoxvirus species and was first identified in Africa. Recently, this infectious disease has spread widely in many parts of the world. Fever, fatigue, headache, and rash are common symptoms of monkeypox. The presence of lymphadenopathy is another prominent and key symptom of monkeypox, which distinguishes this disease from other diseases and is useful for diagnosing the disease. This disease is transmitted to humans through contact with or eating infected animals as well as objects infected with the virus. One of the ways to diagnose this disease is through PCR testing of lesions and secretions. To prevent the disease, vaccines such as JYNNEOS and ACAM2000 are available, but they are not accessible to all people in the world, and their effectiveness and safety need further investigation. However, preventive measures such as avoiding contact with people infected with the virus and using appropriate personal protective equipment are mandatory. The disease therapy is based on medicines such as brincidofovir, cidofovir, and Vaccinia Immune Globulin Intravenous. The injectable format of tecovirimat was approved recently, in May 2022. Considering the importance of clinical care in this disease, awareness about the side effects of medicines, nutrition, care for conjunctivitis, skin rash, washing and bathing at home, and so on can be useful in controlling and managing the disease.
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Affiliation(s)
- Fariba Asadi Noghabi
- Department of Nursing, School of Nursing and Midwifery, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - John G. Rizk
- Department of Pharmaceutical Health Services Research Center, School of Pharmacy, University of Maryland, Baltimore, MD, USA
| | | | - Nasibeh Roozbeh
- Mother and Child Welfare Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Soleyman Ghelichpour
- Student Research Committee, School of Nursing and Midwifery, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Aref Zarei
- Department of Nursing, School of Nursing and Midwifery, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
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Mansoor A, Mansoor E, Waheed Y, Palma PJ, Chaves C. Update on the M-pox virus and safety measures taken against it globally. J Formos Med Assoc 2023:S0929-6646(23)00437-0. [PMID: 37996327 DOI: 10.1016/j.jfma.2023.10.019] [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: 07/27/2023] [Revised: 08/22/2023] [Accepted: 10/23/2023] [Indexed: 11/25/2023] Open
Abstract
Globally, more than 50 countries have been affected by Monkey pox virus after COVID-19 has subsided. WHO declared "public health emergency of international concern" in year 2022 because of virus affecting 60,000 people in just one month that belonged to clade-IIb. Previously, it had been transmitted by body fluids, lesions and touching items, but fresh transmission is via sexual activity among bisexuals and man to man sex (MSM). New outbreaks reported compromised health status of confirmed cases with rectal pain, bleeding, tenesmus, pus or blood in stool, vomiting, proctitis and abdominal pain, which became alarming for entire world because of complications leading to bacterial skin infections, sepsis, encephalitis, hemorrhagic disease, blindness and pneumonia eventually. This virus has been further deteriorating unstable and unsustainable economy that requires dire attention. Strict preventive measures in terms of personal hygiene, pet and livestock health care, hospital contaminant disposal, good surveillance record, pre and post exposure vaccination, waste and water management could be only possible strategies to eliminate devastatingly dangerous M-pox outbreaks in this epic.
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Affiliation(s)
- Afsheen Mansoor
- Department of Dental Material Sciences, School of Dentistry, Shaheed Zulfiqar Ali Bhutto Medical University (SZABMU), Islamabad, 44080, Pakistan.
| | - Emaan Mansoor
- Islamic International Dental College, Riphah International University, Islamabad, 46000, Pakistan.
| | - Yasir Waheed
- Office of Research, Innovation, and Commercialization (ORIC), Shaheed Zulfiqar Ali Bhutto Medical University (SZABMU), Islamabad, 44000, Pakistan.
| | - Paulo J Palma
- Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine, University of Coimbra, 3000-075, Coimbra, Portugal; Institute of Endodontics, Faculty of Medicine, University of Coimbra, 3000-075, Coimbra, Portugal.
| | - Catarina Chaves
- Clinical Microbiology, Clinical Pathology Department, Coimbra University Hospital Center (CHUC), 3000, Coimbra, Portugal.
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8
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Rishi E, Thomas J, Fashina T, Kim L, Yeh S. Emerging Pathogenic Viral Infections of the Eye. Annu Rev Vis Sci 2023; 9:71-89. [PMID: 37018917 DOI: 10.1146/annurev-vision-100820-010504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Global health security threats and the public health impact resulting from emerging infectious diseases including the ongoing COVID-19 pandemic and recent Ebola virus disease outbreaks continuously emphasize the need for a comprehensive approach to preparedness, management of disease outbreaks, and health sequelae associated with emergent pathogens. A spectrum of associated ophthalmic manifestations, along with the potential persistence of emerging viral pathogens in ocular tissues, highlight the importance of an ophthalmic approach to contributing to efforts in the response to public health emergencies from disease outbreaks. This article summarizes the ophthalmic and systemic findings, epidemiology, and therapeutics for emerging viral pathogens identified by the World Health Organization as high-priority pathogens with epidemic potential.
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Affiliation(s)
- Ekta Rishi
- Department of Ophthalmology and Visual Sciences, Truhlsen Eye Institute, University of Nebraska Medical Center, Omaha, Nebraska, USA; , ,
| | | | - Tolulope Fashina
- Department of Ophthalmology and Visual Sciences, Truhlsen Eye Institute, University of Nebraska Medical Center, Omaha, Nebraska, USA; , ,
| | - Lucas Kim
- Mercer University School of Medicine, Augusta, Georgia, USA;
| | - Steven Yeh
- Department of Ophthalmology and Visual Sciences, Truhlsen Eye Institute, University of Nebraska Medical Center, Omaha, Nebraska, USA; , ,
- Global Center for Health Security, University of Nebraska Medical Center, Omaha, Nebraska, USA
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Rojas-Carabali W, Cifuentes-González C, Agrawal R, de-la-Torre A. Spectrum of ophthalmic manifestations in monkeypox virus infection worldwide: Systematic review and meta-analysis. Heliyon 2023; 9:e18561. [PMID: 37576249 PMCID: PMC10413003 DOI: 10.1016/j.heliyon.2023.e18561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 07/17/2023] [Accepted: 07/20/2023] [Indexed: 08/15/2023] Open
Abstract
Mpox virus infection is a significant public health concern worldwide due to its potential severity and the likelihood of outbreaks occurring across different regions. Ophthalmic manifestations of the disease have been linked with more severe cases, leading to the need for hospitalization and antiviral therapy. A systematic review and meta-analysis were conducted following PRISMA guidelines to summarize the literature available on this topic. The review revealed that ophthalmic manifestations, such as conjunctivitis and periocular umbilicated lesions, are the most common in Mpox virus infections. However, severe manifestations, such as corneal opacity, that can potentially cause blindness may also occur. Antiviral treatment with tecovirimat and topical management for conjunctivitis can be considered for severe cases. However, the evidence quality is poor due to the predominance of case reports and imprecise characterization of the ophthalmic manifestations. Overall, ophthalmologists and healthcare professionals should be aware of these manifestations for early diagnosis and timely treatment.
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Affiliation(s)
- William Rojas-Carabali
- Neuroscience (NEUROS) Research Group, Neurovitae Center for Neuroscience, Institute of Translational Medicine (IMT), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Colombia
- Advanced Ophthalmic Imaging Laboratory, Department of Ophthalmology, New York University School of Medicine, USA
| | - Carlos Cifuentes-González
- Neuroscience (NEUROS) Research Group, Neurovitae Center for Neuroscience, Institute of Translational Medicine (IMT), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Colombia
| | - Rupesh Agrawal
- National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore
- Ocular Infections and AntiMicrobials Group, Singapore Eye Research Institute, Singapore
- Duke NUS Medical School, Singapore
- Lee Kong Chian School of Medicine, Singapore
| | - Alejandra de-la-Torre
- Neuroscience (NEUROS) Research Group, Neurovitae Center for Neuroscience, Institute of Translational Medicine (IMT), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Colombia
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Chenchula S, Ghanta MK, Amerneni KC, Rajakarunakaran P, Chandra MB, Chavan M, Gupta R. A systematic review to identify novel clinical characteristics of monkeypox virus infection and therapeutic and preventive strategies to combat the virus. Arch Virol 2023; 168:195. [PMID: 37386209 DOI: 10.1007/s00705-023-05808-4] [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: 01/23/2023] [Accepted: 05/02/2023] [Indexed: 07/01/2023]
Abstract
Since May 2022, there has been a global increase in the number of Mpox virus (MPXV) cases in countries that were previously considered non-endemic. In July 2022, the World Health Organization (WHO) declared this outbreak a public health emergency of international concern. The objective of this systematic review is to examine the novel clinical features of Mpox and to assess the available treatment options for managing the disease in patients who are afflicted with it. We conducted a systematic search in several databases, including PubMed, Google Scholar, Cochrane Library, and the grey literature, from May 2022 to February 2023. We identified 21 eligible studies, which included 18,275 Mpox cases, for final qualitative analysis. The majority of cases were reported in men who have sex with men (MSM) and immunocompromised individuals with HIV (36.1%). The median incubation period was 7 days (IQR: 3-21). The novel clinical manifestations include severe skin lesions on the palms, oral and anogenital regions, as well as proctitis, penile edema, tonsillitis, ocular disease, myalgia, lethargy, and sore throat, without any preceding prodromal symptoms or systemic illness. In addition, fully asymptomatic cases were documented, and various complications, including encephalomyelitis and angina, were noted. Clinicians must be familiar with these novel clinical characteristics, as they can aid in testing and tracing such patients, as well as asymptomatic high-risk populations such as heterosexuals and MSM. In addition to supportive care, currently, there are several effective prophylactic and treatment strategies available to combat Mpox, including the vaccines ACAM2000 and MVA-BN7, as well as the immunoglobulin VIGIV and the antivirals tecovirimat, brincidofovir, and cidofovir against severe Mpox infection.
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Affiliation(s)
- Santenna Chenchula
- Department of Pharmacology, All India Institute of Medical Sciences, Bhopal, India.
| | - Mohan Krishna Ghanta
- Department of Pharmacology, MVJ Medical College and Research Hospital, Bangalore, Karnataka, India
| | | | | | | | - Madhavrao Chavan
- Department of Pharmacology, All India Institute of Medical Sciences, Mangalagiri, India
| | - Rupesh Gupta
- Department of Internal Medicine, Government Medical College, Shahdol, Madhya Pradesh, India
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Dsouza L, Pant A, Offei S, Priyamvada L, Pope B, Satheshkumar PS, Wang Z, Yang Z. Antiviral activities of two nucleos(t)ide analogs against vaccinia, mpox, and cowpox viruses in primary human fibroblasts. Antiviral Res 2023:105651. [PMID: 37270160 PMCID: PMC10234405 DOI: 10.1016/j.antiviral.2023.105651] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/21/2023] [Accepted: 05/31/2023] [Indexed: 06/05/2023]
Abstract
Many poxviruses are significant human and animal pathogens, including viruses that cause smallpox and mpox (formerly monkeypox). Identifying novel and potent antiviral compounds is critical to successful drug development targeting poxviruses. Here we tested two compounds, nucleoside trifluridine, and nucleotide adefovir dipivoxil, for antiviral activities against vaccinia virus (VACV), mpox virus (MPXV), and cowpox virus (CPXV) in physiologically relevant primary human fibroblasts. Both compounds potently inhibited the replication of VACV, CPXV, and MPXV (MA001 2022 isolate) in plaque assays. In our recently developed assay based on a recombinant VACV expressing secreted Gaussia luciferase, they both exhibited high potency in inhibiting VACV replication with EC50s in the low nanomolar range. In addition, both trifluridine and adefovir dipivoxil inhibited VACV DNA replication and downstream viral gene expression. Our results characterized trifluridine and adefovir dipivoxil as strong poxvirus antiviral compounds and further validate the VACV Gaussia luciferase assay as a highly efficient and reliable reporter tool for identifying poxvirus inhibitors. Given that both compounds are FDA-approved drugs, and trifluridine is already used to treat ocular vaccinia, further development of trifluridine and adefovir dipivoxil holds great promise in treating poxvirus infections, including mpox.
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Affiliation(s)
- Lara Dsouza
- Department of Veterinary Pathobiology, School of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Anil Pant
- Department of Veterinary Pathobiology, School of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Samuel Offei
- Center for Drug Design, College of Pharmacy, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Lalita Priyamvada
- Poxvirus and Rabies Branch, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Blake Pope
- Department of Veterinary Pathobiology, School of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | | | - Zhengqiang Wang
- Center for Drug Design, College of Pharmacy, University of Minnesota, Minneapolis, MN, 55455, USA.
| | - Zhilong Yang
- Department of Veterinary Pathobiology, School of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX, USA.
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12
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Alsarhani WK, Chan CC, Boyd SR, Hasso M, Almeer A, Tan DHS. Monkeypox-Associated Disciform Keratitis. Cornea 2023; 42:641-644. [PMID: 36729600 PMCID: PMC10060039 DOI: 10.1097/ico.0000000000003171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/29/2022] [Accepted: 09/01/2022] [Indexed: 02/03/2023]
Abstract
PURPOSE The purpose of this study was to describe a case of monkeypox (MPX)-associated disciform keratitis. METHODS This is a case report. RESULTS A 36-year-old male patient presented to the infectious diseases clinic with a 1-week history of disseminated pustular skin lesions, a 4-day history of constitutional symptoms, and redness in the left eye. Testing of blood, 2 skin lesions, and a conjunctival swab confirmed the presence of MPX virus by polymerase chain reaction. On ophthalmologic examination on the 17th day of illness, there was a corneal epithelial ridge that stained with fluorescein with disciform corneal edema and underlying keratic precipitates. The patient was treated with oral tecovirimat 600 mg twice a day for 14 days and topical prednisolone acetate 1% 4 times daily, starting 2 days later. On completion of oral treatment, his corneal findings had resolved except for a small subepithelial scar at which time topical steroids were tapered. CONCLUSIONS MPX may cause disciform keratitis and scarring that closely resembles other ocular viral infections. Clinical trials are urgently needed to define the optimal management of human MPX infections and reduce vision loss.
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Affiliation(s)
- Waleed K. Alsarhani
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON, Canada
| | - Clara C. Chan
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON, Canada
- Department of Ophthalmology, St. Michael's Hospital, Toronto, ON, Canada
| | - Shelley R. Boyd
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON, Canada
- Department of Ophthalmology, St. Michael's Hospital, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Maan Hasso
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Public Health Ontario, ON, Canada
| | - Ahmed Almeer
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON, Canada
| | - Darrell H. S. Tan
- Division of Infectious Diseases, St. Michael's Hospital, Toronto, ON, Canada
- MAP Centre for Urban Health Solutions, St. Michael's Hospital, Toronto, ON, Canada; and
- Department of Medicine, University of Toronto, Toronto, ON, Canada
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Dsouza L, Pant A, Offei S, Priyamvada L, Pope B, Satheshkumar PS, Wang Z, Yang Z. Antiviral activities of two nucleos(t)ide analogs against vaccinia and mpox viruses in primary human fibroblasts. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.23.533943. [PMID: 36993701 PMCID: PMC10055413 DOI: 10.1101/2023.03.23.533943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
Many poxviruses are significant human and animal pathogens, including viruses that cause smallpox and mpox. Identification of inhibitors of poxvirus replication is critical for drug development to manage poxvirus threats. Here we tested two compounds, nucleoside trifluridine and nucleotide adefovir dipivoxil, for antiviral activities against vaccinia virus (VACV) and mpox virus (MPXV) in physiologically relevant primary human fibroblasts. Both trifluridine and adefovir dipivoxil potently inhibited replication of VACV and MPXV (MA001 2022 isolate) in a plaque assay. Upon further characterization, they both conferred high potency in inhibiting VACV replication with half maximal effective concentrations (EC 50 ) at low nanomolar levels in our recently developed assay based on a recombinant VACV secreted Gaussia luciferase. Our results further validated that the recombinant VACV with Gaussia luciferase secretion is a highly reliable, rapid, non-disruptive, and simple reporter tool for identification and chracterization of poxvirus inhibitors. Both compounds inhibited VACV DNA replication and downstream viral gene expression. Given that both compounds are FDA-approved drugs, and trifluridine is used to treat ocular vaccinia in medical practice due to its antiviral activity, our results suggest that it holds great promise to further test trifluridine and adefovir dipivoxil for countering poxvirus infection, including mpox.
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Affiliation(s)
- Lara Dsouza
- Department of Veterinary Pathobiology, School of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Anil Pant
- Department of Veterinary Pathobiology, School of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Samuel Offei
- Center for Drug Design, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA
| | - Lalita Priyamvada
- Poxvirus and Rabies Branch, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Blake Pope
- Department of Veterinary Pathobiology, School of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Panayampalli S. Satheshkumar
- Poxvirus and Rabies Branch, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
- Correspondence: (SPS); (ZW); (ZY)
| | - Zhengqiang Wang
- Center for Drug Design, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA
- Correspondence: (SPS); (ZW); (ZY)
| | - Zhilong Yang
- Department of Veterinary Pathobiology, School of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
- Correspondence: (SPS); (ZW); (ZY)
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14
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Rao AK, Schrodt CA, Minhaj FS, Waltenburg MA, Cash-Goldwasser S, Yu Y, Petersen BW, Hutson C, Damon IK. Interim Clinical Treatment Considerations for Severe Manifestations of Mpox - United States, February 2023. MMWR. MORBIDITY AND MORTALITY WEEKLY REPORT 2023; 72:232-243. [PMID: 36862595 PMCID: PMC9997665 DOI: 10.15585/mmwr.mm7209a4] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
Monkeypox (mpox) is a disease caused by infection with Monkeypox virus (MPXV), an Orthopoxvirus (OPXV) in the same genus as Variola virus, which causes smallpox. During 2022, a global outbreak involving mpox clade IIb was recognized, primarily among gay, bisexual, and other men who have sex with men.* Most affected patients have been immunocompetent and experienced ≤10 rash lesions (1). CDC has recommended supportive care including pain control.† However, some patients have experienced severe mpox manifestations, including ocular lesions, neurologic complications, myopericarditis, complications associated with mucosal (oral, rectal, genital, and urethral) lesions, and uncontrolled viral spread due to moderate or severe immunocompromise, particularly advanced HIV infection (2). Therapeutic medical countermeasures (MCMs) are Food and Drug Administration (FDA)-regulated drugs and biologics that are predominantly stockpiled by the U.S. government; MCMs developed for smallpox preparedness or shown to be effective against other OPXVs (i.e., tecovirimat, brincidofovir, cidofovir, trifluridine ophthalmic solution, and vaccinia immune globulin intravenous [VIGIV]) have been used to treat severe mpox. During May 2022-January 2023, CDC provided more than 250 U.S. mpox consultations. This report synthesizes data from animal models, MCM use for human cases of related OPXV, unpublished data, input from clinician experts, and experience during consultations (including follow-up) to provide interim clinical treatment considerations. Randomized controlled trials and other carefully controlled research studies are needed to evaluate the effectiveness of MCMs for treating human mpox. Until data gaps are filled, the information presented in this report represents the best available information concerning the effective use of MCMs and should be used to guide decisions about MCM use for mpox patients.
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15
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Perzia B, Theotoka D, Li K, Moss E, Matesva M, Gill M, Kibe M, Chow J, Green S. Treatment of ocular-involving monkeypox virus with topical trifluridine and oral tecovirimat in the 2022 monkeypox virus outbreak. Am J Ophthalmol Case Rep 2023; 29:101779. [PMID: 36573234 PMCID: PMC9744718 DOI: 10.1016/j.ajoc.2022.101779] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 12/08/2022] [Accepted: 12/12/2022] [Indexed: 12/14/2022] Open
Abstract
Purpose To report a case of ocular involving monkeypox infection in the United States during the 2022 outbreak, and to review the literature regarding its clinical manifestations and management known to date. Observations A 36-year-old man with well controlled HIV presented to the emergency department with anal pain, diffuse rash, right eye pain, and right eye redness after he tested positive for monkeypox one week prior. Ocular examination showed bilateral periorbital vesicular lesions, right eye conjunctival injection, and a single white plaque on his right medial bulbar conjunctiva. Macular, vesicular, and pustular lesions were noted throughout his body, including the genital and perianal region. His ocular and systemic symptoms completely resolved after treatment with a ten-day course of 1% trifluridine and moxifloxacin drops in both eyes, as well as two weeks of oral tecovirimat. Conclusion and Importance In July of 2022, monkeypox virus was declared a global health emergency by the World Health Organization; however, there are no standard guidelines for monkeypox treatment. Data on its clinical presentation and course, especially pertaining to ocular manifestations, is limited. We highlight the importance of recognizing ophthalmic manifestations of monkeypox virus and a possible therapeutic approach to help guide the management of these patients.
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Key Words
- ART, Antiretroviral therapy
- CDC, Centers for Disease Control and Prevention
- Conjunctival lesion
- Conjunctivitis
- MPV, Monkeypox virus
- Monkeypox virus
- OCT, Optical coherence tomography
- OD, right eye
- OS, left eye
- OSSN, Ocular surface squamous neoplasia
- OU, both eyes
- Ocular manifestations
- PCP, Primary care physician
- STI, Sexually transmitted infection
- VIG, Vaccinia immune globulin
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Affiliation(s)
- Brittany Perzia
- Department of Ophthalmology and Visual Science, Yale School of Medicine, 40 Temple Street, New Haven, CT, 06510, USA
| | - Despoina Theotoka
- Department of Ophthalmology and Visual Science, Yale School of Medicine, 40 Temple Street, New Haven, CT, 06510, USA
| | - Katie Li
- Department of Ophthalmology and Visual Science, Yale School of Medicine, 40 Temple Street, New Haven, CT, 06510, USA,Department of Internal Medicine, Yale School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
| | - Emily Moss
- Department of Internal Medicine, Yale School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
| | - Mitchelle Matesva
- Department of Internal Medicine, Yale School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
| | - Mohsain Gill
- Department of Ophthalmology and Visual Science, Yale School of Medicine, 40 Temple Street, New Haven, CT, 06510, USA
| | - Mercy Kibe
- Department of Ophthalmology and Visual Science, Yale School of Medicine, 40 Temple Street, New Haven, CT, 06510, USA
| | - Jessica Chow
- Department of Ophthalmology and Visual Science, Yale School of Medicine, 40 Temple Street, New Haven, CT, 06510, USA
| | - Stephanie Green
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA,Corresponding author
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16
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A Review of Monkeypox Ocular Manifestations and Complications: Insights for the 2022 Outbreak. Ophthalmol Ther 2023; 12:55-69. [PMID: 36512187 PMCID: PMC9834445 DOI: 10.1007/s40123-022-00626-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 11/24/2022] [Indexed: 12/15/2022] Open
Abstract
Monkeypox (MPVX) infection has been associated with multiorgan presentations. Thus, monkeypox infection's early and late complications are of particular concern, prompting health systems to decipher threatening sequels and their possible countermeasures. The current article will review the clinical signs and symptoms of the present and former outbreaks, differential diagnoses, workup and treatment of the ocular manifestations of MPXV infection in detail. One of the uncommon yet considerable MPXV complications is ocular involvement. These injuries are classified as (1) more frequent and benign lesions and (2) less common and vision-threatening sequels. Conjunctivitis, blepharitis and photophobia are the most uncomplicated reported presentations. Moreover, MPXV can manifest as eye redness, frontal headache, orbital and peri-ocular rashes, lacrimation and ocular discharge, subconjunctival nodules and, less frequently, as keratitis, corneal ulceration, opacification, perforation and blindness. The ocular manifestations have been less frequent and arguably less severe within the current outbreak. Despite the possibility of underestimation, the emerging evidence from observational investigations documented rates of around 1% for ocular involvement in the current outbreak compared to a 9-23% incidence in previous outbreaks in the endemic countries. The history of smallpox immunization is a protective factor against these complications. Despite a lack of definite and established treatment, simple therapies like regular lubrication and prophylactic use of topical antibiotics may be considered for MPXV ocular complications. Timely administration of specific antivirals may also be effective in severe cases. Monkeypox usually has mild to moderate severity and a self-limited course. However, timely recognition and proper management of the disease could reduce the risk of permanent ocular sequelae and disease morbidity.
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Quites TDO, Landeira LFL, Santana TGVD, Khouri CL, Arruda MB, Baptista PADS, Barroso SPC. Monkeypox keratoconjunctivitis with associated Wessley immune ring in an immunocompetent patient. J Med Virol 2023; 95:e28545. [PMID: 36727638 DOI: 10.1002/jmv.28545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 01/27/2023] [Accepted: 01/30/2023] [Indexed: 02/03/2023]
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18
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Bhamray-Sanchez D, Subramanian S, Dever LL, Chew D. Ocular MPox: A report of two cases. IDCases 2023; 31:e01706. [PMID: 36742285 PMCID: PMC9889298 DOI: 10.1016/j.idcr.2023.e01706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/26/2023] [Accepted: 01/31/2023] [Indexed: 02/04/2023] Open
Abstract
We report two cases of ocular MPox in men living with HIV, and review the clinical manifestations, diagnosis, and treatment of this rare syndrome. Our cases highlight the need for early recognition and prompt treatment for this potentially sight threatening infection.
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Affiliation(s)
- Devina Bhamray-Sanchez
- Correspondence to: Devina Bhamray-Sanchez, MD, Rutgers New Jersey Medical School, Division of Infectious Diseases, 185 South Orange Avenue, MSB I-689, Newark, NJ, USA
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19
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Kaufman AR, Chodosh J, Pineda R. Monkeypox Virus and Ophthalmology-A Primer on the 2022 Monkeypox Outbreak and Monkeypox-Related Ophthalmic Disease. JAMA Ophthalmol 2023; 141:78-83. [PMID: 36326768 DOI: 10.1001/jamaophthalmol.2022.4567] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Importance An ongoing global monkeypox virus outbreak in 2022 includes the US and other nonendemic countries. Monkeypox ophthalmic manifestations may present to the ophthalmologist, or the ophthalmologist may be involved in comanagement. This narrative review creates a primer for the ophthalmologist of clinically relevant information regarding monkeypox, its ophthalmic manifestations, and the 2022 outbreak. Observations Monkeypox virus is an Orthopoxvirus (genus includes variola [smallpox] and vaccinia [smallpox vaccine]). The 2022 outbreak is of clade II (historically named West African clade), specifically subclade IIb. In addition to historic transmission patterns (skin lesions, bodily fluids, respiratory droplets), sexual transmission has also been theorized in the current outbreak due to disproportionate occurrence in men who have sex with men. Monkeypox causes a characteristic skin eruption and mucosal lesions and may cause ophthalmic disease. Monkeypox-related ophthalmic disease (MPXROD) includes a spectrum of ocular pathologies including eyelid/periorbital skin lesions, blepharoconjunctivitis, and keratitis). Smallpox vaccination may reduce MPXROD occurrence. MPXROD seems to be rarer in the 2022 outbreaks than in historical outbreaks. MPXROD may result in corneal scarring and blindness. Historical management strategies for MPXROD include lubrication and prevention/management of bacterial superinfection in monkeypox keratitis. Case reports and in vitro data for trifluridine suggest a possible role in MPXROD. Tecovirimat, cidofovoir, brincidofovir and vaccinia immune globulin intravenous may be used for systemic infection. There is a theoretical risk for monkeypox transmission by corneal transplantation, and the Eye Bank Association of America has provided guidance. Smallpox vaccines (JYNNEOS [Bavarian Nordic] and ACAM2000 [Emergent Product Development Gaithersburg Inc]) provide immunity against monkeypox. Conclusions and Relevance The ophthalmologist may play an important role in the diagnosis and management of monkeypox. MPXROD may be associated with severe ocular and visual morbidity. As the current outbreak evolves, up-to-date guidance from public health organizations and professional societies are critical.
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Affiliation(s)
- Aaron R Kaufman
- Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston
| | - James Chodosh
- Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston.,Department of Ophthalmology & Visual Sciences, University of New Mexico School of Medicine, Albuquerque
| | - Roberto Pineda
- Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston
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20
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Therapeutic strategies for human poxvirus infections: Monkeypox (mpox), smallpox, molluscipox, and orf. Travel Med Infect Dis 2022; 52:102528. [PMID: 36539022 PMCID: PMC9758798 DOI: 10.1016/j.tmaid.2022.102528] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/01/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022]
Abstract
Therapeutic and vaccine development for human poxvirus infections (e.g., monkeypox (mpox) virus, variola virus, molluscum contagiosum virus, orf virus) has been largely deserted, especially after the eradication of smallpox by 1980. Human mpox is a self-limited disease confined to Central and West Africa for decades. However, since April 2022, mpox has quickly emerged as a multi-country outbreak, urgently calling for effective antiviral agents and vaccines to control mpox. Here, this review highlights possible therapeutic options (e.g., tecovirimat, brincidofovir, cidofovir) and other strategies (e.g., vaccines, intravenous vaccinia immune globulin) for the management of human poxvirus infections worldwide.
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21
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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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22
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Ly-Yang F, Miranda-Sánchez A, Burgos-Blasco B, Fernández-Vigo JI, Gegúndez-Fernández JA, Díaz-Valle D. Conjunctivitis in an Individual With Monkeypox. JAMA Ophthalmol 2022; 140:1022-1024. [PMID: 36069834 DOI: 10.1001/jamaophthalmol.2022.3743] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Fernando Ly-Yang
- Servicio de Oftalmología, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Alfonso Miranda-Sánchez
- Servicio de Oftalmología, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Barbara Burgos-Blasco
- Servicio de Oftalmología, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Jose Ignacio Fernández-Vigo
- Servicio de Oftalmología, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Jose Antonio Gegúndez-Fernández
- Servicio de Oftalmología, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - David Díaz-Valle
- Servicio de Oftalmología, Hospital Clínico San Carlos, Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
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23
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Huang YA, Howard‐Jones AR, Durrani S, Wang Z, Williams PCM. Monkeypox: A clinical update for paediatricians. J Paediatr Child Health 2022; 58:1532-1538. [PMID: 35979896 PMCID: PMC9545589 DOI: 10.1111/jpc.16171] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 07/30/2022] [Indexed: 01/03/2023]
Abstract
The global spread of human monkeypox disease, a zoonotic infection related to smallpox and endemic to West and Central Africa, presents serious challenges for health systems. As of July 2022, 14 533 cases have been reported world-wide, leading to designation as a Public Health Emergency of International Concern. Monkeypox disease is spread from animals to humans through infected lesions or fluids; human-human transmission occurs through fomites, droplets or direct contact. Illness is usually self-limiting, but severe disease can occur in specific groups - particularly children, and people who are immunocompromised or pregnant. Clinical presentation may include fever, lymphadenopathy and skin rash, but the rash may occur without other symptoms. Complications can include secondary bacterial infection of skin lesions, vision loss from corneal involvement, pneumonia, sepsis and encephalitis. Diagnosis of monkeypox requires consideration of epidemiological, clinical and laboratory findings, with sensitive history-taking, to elicit close contacts, critical. Supportive management is usually sufficient, but treatment options (where required) include antivirals and vaccinia immune globulin. A paucity of safety data for relevant antivirals may limit their use. There are two types of monkeypox vaccines: a replication-competent vaccinia vaccine, the use of which is logistically and clinically complex, and a replication-deficient modified vaccinia Ankara virus vaccine. Preparedness of health systems for addressing the current outbreak is constrained by historic underfunding for research, and compounded by stigma and discrimination against cases and affected communities. Key challenges in halting transmission include improving vaccine equity and countering discrimination against men who have sex with men to aid diagnosis and treatment.
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Affiliation(s)
- Yuanfei A Huang
- National Centre for Immunisation Research and SurveillanceSydney Children's Hospital NetworkSydneyNew South WalesAustralia
| | - Annaleise R Howard‐Jones
- New South Wales Health PathologyInstitute of Clinical Pathology and Medical Research (ICPMR)SydneyNew South WalesAustralia,Faculty of Medicine and HealthThe University of SydneySydneyNew South WalesAustralia
| | - Shireen Durrani
- National Centre for Immunisation Research and SurveillanceSydney Children's Hospital NetworkSydneyNew South WalesAustralia
| | - Zhicheng Wang
- National Centre for Immunisation Research and SurveillanceSydney Children's Hospital NetworkSydneyNew South WalesAustralia,School of Pharmacy, Faculty of Medicine and HealthThe University of SydneySydneyNew South WalesAustralia
| | - Phoebe CM Williams
- National Centre for Immunisation Research and SurveillanceSydney Children's Hospital NetworkSydneyNew South WalesAustralia,Department of Immunology and Infectious DiseasesSydney Children's HospitalSydneyNew South WalesAustralia,School of Women and Children's HealthThe University of NSWSydneyNew South WalesAustralia,School of Public Health, Faculty of MedicineThe University of SydneySydneyNew South WalesAustralia
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24
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Safety and efficacy of tacrolimus-coated silicone plates as an alternative to mitomycin C in a rabbit model of conjunctival fibrosis. PLoS One 2019; 14:e0219194. [PMID: 31276522 PMCID: PMC6611608 DOI: 10.1371/journal.pone.0219194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 06/18/2019] [Indexed: 12/05/2022] Open
Abstract
Purpose To find safer and more effective drugs than mitomycin C to prevent conjunctival fibrosis in a rabbit model. Methods Twenty-four rabbits were involved and randomly divided into four groups. Limbus-based peritomy was performed at the superior cornea, and normal saline (NS group), mitomycin C (MMC group), SR (SR group), or TC (TC group)-coated silicone plate was inserted at the sub-Tenon’s space in each group. Conjunctival congestion was evaluated at 1 and 4 weeks postoperatively. At 4 weeks, the numbers of inflammatory cells, fibroblasts, myofibroblasts, blood vessels, and goblet cells were counted in the conjunctiva and Tenon’s capsule around the silicone plate. Results At 4 weeks, conjunctival congestion was significantly less than that observed at 1 week in the SR and TC groups (p < 0.05), whereas the number of myofibroblasts was significantly lower in the MMC and TC groups (p < 0.05). The conjunctiva was significantly less congested in the TC group versus the other groups at 1 week and 4 weeks (p < 0.05). The TC group had the lowest number of inflammatory cells and MMC group had the lowest number of goblet cells among all groups (p < 0.05). Conclusions The TC-coated silicone plate was more effective in inhibiting inflammation and fibrosis versus the MMC-coated silicone plate and was associated with fewer adverse effects in the rabbit model.
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25
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Reynolds MG, McCollum AM, Nguete B, Shongo Lushima R, Petersen BW. Improving the Care and Treatment of Monkeypox Patients in Low-Resource Settings: Applying Evidence from Contemporary Biomedical and Smallpox Biodefense Research. Viruses 2017; 9:E380. [PMID: 29231870 PMCID: PMC5744154 DOI: 10.3390/v9120380] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 11/16/2017] [Accepted: 12/07/2017] [Indexed: 11/17/2022] Open
Abstract
Monkeypox is a smallpox-like illness that can be accompanied by a range of significant medical complications. To date there are no standard or optimized guidelines for the clinical management of monkeypox (MPX) patients, particularly in low-resource settings. Consequently, patients can experience protracted illness and poor outcomes. Improving care necessitates developing a better understanding of the range of clinical manifestations-including complications and sequelae-as well as of features of illness that may be predictive of illness severity and poor outcomes. Experimental and natural infection of non-human primates with monkeypox virus can inform the approach to improving patient care, and may suggest options for pharmaceutical intervention. These studies have traditionally been performed to address the threat of smallpox bioterrorism and were designed with the intent of using MPX as a disease surrogate for smallpox. In many cases this necessitated employing high-dose, inhalational or intravenous challenge to recapitulate the severe manifestations of illness seen with smallpox. Overall, these data-and data from biomedical research involving burns, superficial wounds, herpes, eczema vaccinatum, and so forth-suggest that MPX patients could benefit from clinical support to mitigate the consequences of compromised skin and mucosa. This should include prevention and treatment of secondary bacterial infections (and other complications), ensuring adequate hydration and nutrition, and protecting vulnerable anatomical locations such as the eyes and genitals. A standard of care that considers these factors should be developed and assessed in different settings, using clinical metrics specific for MPX alongside consideration of antiviral therapies.
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Affiliation(s)
- Mary G Reynolds
- US Centers for Disease Control and Prevention, Poxvirus and Rabies Branch, Atlanta, GA 30329, USA.
| | - Andrea M McCollum
- US Centers for Disease Control and Prevention, Poxvirus and Rabies Branch, Atlanta, GA 30329, USA.
| | | | | | - Brett W Petersen
- US Centers for Disease Control and Prevention, Poxvirus and Rabies Branch, Atlanta, GA 30329, USA.
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26
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Both CD8+ and CD4+ T Cells Contribute to Corneal Clouding and Viral Clearance following Vaccinia Virus Infection in C57BL/6 Mice. J Virol 2016; 90:6557-6572. [PMID: 27170749 DOI: 10.1128/jvi.00570-16] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 04/26/2016] [Indexed: 02/05/2023] Open
Abstract
UNLABELLED Vaccinia virus (VACV) keratitis is a serious complication following smallpox vaccination and can lead to blindness. The pathological mechanisms involved in ocular VACV infection are poorly understood. Previous studies have used rabbits, but the lack of immune reagents and transgenic or knockout animals makes them less suitable for mechanistic studies. We report that infection of C57BL/6 mice with 1 × 10(7) PFU of vaccinia virus strain WR results in blepharitis, corneal neovascularization, and stromal keratitis. The DryVax strain of VACV was completely attenuated. Infection required corneal scarification and replication-competent virus, and the severity of ocular disease was similar in 4- to 6-week-old and 1-year-old mice. Viral titers peaked at approximately 1 × 10(6) PFU on day 5 postinfection, and virus had not cleared by day 13 postinfection. Neutrophils were found in the peripheral cornea on day 1 after infection and then declined, followed by infiltration of both CD4(+) and CD8(+) T cells, which remained peripheral throughout the infection. Blood vessel growth extended 2 to 5 mm into the cornea from the limbus. Infection of CD4(-/-), CD8(-/-), or antibody-depleted mice resulted in similar disease severity and corneal clouding, indicating that both T-cell subsets were involved in the immunopathological response. Depletion of both CD4(+) and CD8(+) T cells resulted in significantly more severe disease and failure to clear the virus. On the basis of our results, the pathology of VACV keratitis is significantly different from that of herpes simplex virus keratitis. Further studies are likely to reveal novel information regarding virulence and immune responses to viral ocular infection. IMPORTANCE Potentially blinding eye infections can occur after vaccination for smallpox. Very little is known about the pathological mechanisms that are involved, and the information that is available was generated using rabbit models. The lack of immunological reagents for rabbits makes such studies difficult. We characterized a mouse model of vaccinia virus ocular disease using C57BL/6 mice and strain WR and show that both CD4(+) and CD8(+) T-cell subsets play a role in the blinding eye disease and in controlling virus replication. On the basis of these results, vaccinia virus keratitis is significantly different from herpes simplex virus keratitis, and further studies using this model should generate novel insights into immunopathological responses to viral ocular infection.
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Altmann SE, Smith AL, Dyall J, Johnson RF, Dodd LE, Jahrling PB, Paragas J, Blaney JE. Inhibition of cowpox virus and monkeypox virus infection by mitoxantrone. Antiviral Res 2012; 93:305-308. [PMID: 22182595 PMCID: PMC3272698 DOI: 10.1016/j.antiviral.2011.12.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2011] [Revised: 11/29/2011] [Accepted: 12/04/2011] [Indexed: 11/25/2022]
Abstract
Mitoxantrone, an FDA-approved therapeutic for the treatment of cancer and multiple sclerosis, was previously reported to exhibit antiviral activity against vaccinia virus. To determine whether this activity extends to other orthopoxviruses, mitoxantrone was tested against cowpox and monkeypox. Mitoxantrone demonstrated an EC(50) of 0.25 μM against cowpox and 0.8 μM against monkeypox. Intraperitoneal treatment of cowpox virus-challenged C57Bl/6 mice with 0.5 mg/kg mitoxantrone resulted in 25% survival and a significant increase in survival time. In an effort to improve its efficacy, mitoxantrone was tested for synergistic activity with cidofovir. In vitro tests demonstrated significant synergy between the two drugs against cowpox; however, no synergistic effect on animal survival or median time-to-death was seen in intranasally-infected BALB/c mice. Significantly fewer animals survived when treated with a combination of 0.5 mg/kg mitoxantrone and 100 mg/kg cidofovir than with 100 mg/kg cidofovir alone. This is, to our knowledge, the first report of limited anti-orthopoxvirus activity by mitoxantrone in an animal model.
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Affiliation(s)
- Sharon E Altmann
- Emerging Viral Pathogens Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Alvin L Smith
- Emerging Viral Pathogens Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Julie Dyall
- Integrated Research Facility, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, MD 21702, USA
| | - Reed F Johnson
- Emerging Viral Pathogens Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Lori E Dodd
- Biostatistics Research Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Peter B Jahrling
- Emerging Viral Pathogens Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA; Integrated Research Facility, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, MD 21702, USA
| | - Jason Paragas
- Integrated Research Facility, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, MD 21702, USA
| | - Joseph E Blaney
- Emerging Viral Pathogens Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
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Potent antiviral activity of brequinar against the emerging Cantagalo virus in cell culture. Int J Antimicrob Agents 2011; 38:435-41. [DOI: 10.1016/j.ijantimicag.2011.07.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Revised: 06/30/2011] [Accepted: 07/01/2011] [Indexed: 11/22/2022]
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Wang ZY, Bi YH, Zong MH. Highly Regioselective Synthesis of 3′-O-Acyl-Trifluridines Catalyzed by Pseudomonas cepacia Lipase. Appl Biochem Biotechnol 2011; 165:1161-8. [DOI: 10.1007/s12010-011-9333-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Accepted: 07/27/2011] [Indexed: 01/30/2023]
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