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Siddiquee NH, Talukder MEK, Ahmed E, Zeba LT, Aivy FS, Rahman MH, Barua D, Rumman R, Hossain MI, Shimul MEK, Rama AR, Chowdhury S, Hossain I. Cheminformatics-based analysis identified (Z)-2-(2,5-dimethoxy benzylidene)-6-(2-(4-methoxyphenyl)-2-oxoethoxy) benzofuran-3(2H)-one as an inhibitor of Marburg replication by interacting with NP. Microb Pathog 2024; 195:106892. [PMID: 39216611 DOI: 10.1016/j.micpath.2024.106892] [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: 03/15/2024] [Revised: 08/17/2024] [Accepted: 08/26/2024] [Indexed: 09/04/2024]
Abstract
The highly pathogenic Marburg virus (MARV) is a member of the Filoviridae family, a non-segmented negative-strand RNA virus. This article represents the computer-aided drug design (CADD) approach for identifying drug-like compounds that prevent the MARV virus disease by inhibiting nucleoprotein, which is responsible for their replication. This study used a wide range of in silico drug design techniques to identify potential drugs. Out of 368 natural compounds, 202 compounds passed ADMET, and molecular docking identified the top two molecules (CID: 1804018 and 5280520) with a high binding affinity of -6.77 and -6.672 kcal/mol, respectively. Both compounds showed interactions with the common amino acid residues SER_216, ARG_215, TYR_135, CYS_195, and ILE_108, which indicates that lead compounds and control ligands interact in the common active site/catalytic site of the protein. The negative binding free energies of CID: 1804018 and 5280520 were -66.01 and -31.29 kcal/mol, respectively. Two lead compounds were re-evaluated using MD modeling techniques, which confirmed CID: 1804018 as the most stable when complexed with the target protein. PC3 of the (Z)-2-(2,5-dimethoxybenzylidene)-6-(2-(4-methoxyphenyl)-2-oxoethoxy) benzofuran-3(2H)-one (CID: 1804018) was 8.74 %, whereas PC3 of the 2'-Hydroxydaidzein (CID: 5280520) was 11.25 %. In this study, (Z)-2-(2,5-dimethoxybenzylidene)-6-(2-(4-methoxyphenyl)-2-oxoethoxy) benzofuran-3(2H)-one (CID: 1804018) unveiled the significant stability of the proteins' binding site in ADMET, Molecular docking, MM-GBSA and MD simulation analysis studies, which also showed a high negative binding free energy value, confirming as the best drug candidate which is found in Angelica archangelica which may potentially inhibit the replication of MARV nucleoprotein.
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Affiliation(s)
- Noimul Hasan Siddiquee
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh; Bioinformatics Laboratory (BioLab), Bangladesh
| | - Md Enamul Kabir Talukder
- Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Bangladesh
| | - Ezaz Ahmed
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh; Bioinformatics Laboratory (BioLab), Bangladesh
| | - Labiba Tasnim Zeba
- Bioinformatics Laboratory (BioLab), Bangladesh; Department of Mathematics & Natural Sciences, BRAC University, Dhaka, Bangladesh
| | - Farjana Sultana Aivy
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh; Bioinformatics Laboratory (BioLab), Bangladesh
| | - Md Hasibur Rahman
- Bioinformatics Laboratory (BioLab), Bangladesh; Department of Biotechnology and Genetic Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Durjoy Barua
- Bioinformatics Laboratory (BioLab), Bangladesh; Department of Pharmacy, BGC Trust University, Bangladesh
| | - Rahnumazzaman Rumman
- Bioinformatics Laboratory (BioLab), Bangladesh; Department Of Environmental Science and Disaster Management, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Md Ifteker Hossain
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh; Bioinformatics Laboratory (BioLab), Bangladesh
| | - Md Ebrahim Khalil Shimul
- Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Bangladesh
| | - Anika Rahman Rama
- Bioinformatics Laboratory (BioLab), Bangladesh; Department of Genetic Engineering and Biotechnology, East West University, Dhaka, Bangladesh
| | - Sristi Chowdhury
- Bioinformatics Laboratory (BioLab), Bangladesh; Department of Biochemistry and Molecular Biology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Imam Hossain
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh; Bioinformatics Laboratory (BioLab), Bangladesh.
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Agboh HNK, Adjei GA, Okai GA, Awotwe C, Ossom BM, Yarney L. Infection prevention and control: Qualitative study of the preparedness and response of Christian health Association of Ghana to Marburg virus disease in Ghana. Heliyon 2024; 10:e31953. [PMID: 38882285 PMCID: PMC11176786 DOI: 10.1016/j.heliyon.2024.e31953] [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: 01/10/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/18/2024] Open
Abstract
Objective Recent disease outbreaks underscore the importance of robust disease surveillance and infection prevention and control (IPC) programmes to bolster Africa's public health response system. Yet, available evidence shows extensive gaps in the emergency response capacity of faith-based healthcare providers on the continent. Accordingly, this study examines the IPC and surveillance strategies adopted by a faith-based healthcare provider and the challenges encountered during Marburg Virus Disease outbreak (MVD) in Ghana. Method We collected data from 15 clinical and nonclinical health workers from the Christian Health Association of Ghana (CHAG) and the Ghana Health Service (GHS). Data was collected through online interviews to examine two pillars of the WHO COVID-19 SPRP-AFR (2021) framework. We analyzed the data using Braun and Clarke's thematic analysis. Findings The facility performed creditably well with contact tracing and other quarantine protocols during MVD outbreak in Ghana. However, it also encountered several challenges in the enforcement of IPC protocols, including human resource constraints, the lack of decontamination equipment, and limited infrastructure, among others. Given these limitations, we assessed that the facility cannot handle major outbreaks. Conclusion Due to numerous infectious disease outbreaks in Sub-Saharan Africa in recent years, the government of Ghana and faith-based healthcare providers must resource their facilities with the relevant equipment and qualified human resources against future disease outbreaks.
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Affiliation(s)
| | | | - Grace Adjei Okai
- Catholic Health Service Trust, Ghana, P. O. Box 9712, Airport, Accra, Ghana
| | - Caroline Awotwe
- Catholic Health Service Trust, Ghana, P. O. Box 9712, Airport, Accra, Ghana
| | | | - Lily Yarney
- University of Ghana Business School, P. O. Box LG 78, Legon, Accra, Ghana
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Mujahid U, Ahmad M, Mujahid A, Narayan E, Rehman SU, Iqbal HMN, Ahmed I. Recent outbreak of Marburg virus; a global health concern and future perspective. Eur J Clin Microbiol Infect Dis 2024; 43:209-211. [PMID: 37930494 DOI: 10.1007/s10096-023-04692-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 10/24/2023] [Indexed: 11/07/2023]
Affiliation(s)
- Usama Mujahid
- Faculty of Veterinary Sciences, Bahauddin Zakariya University, Multan, 66000, Pakistan
| | - Muhammad Ahmad
- Faculty of Veterinary Sciences, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand, 67210, Pakistan
- Institute of Physiology and Pharmacology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
| | - Attiqa Mujahid
- Faculty of Veterinary Sciences, Bahauddin Zakariya University, Multan, 66000, Pakistan
| | - Edward Narayan
- School of Agriculture and Food Sustainability, The University of Queensland, Gatton, QLD, 4343, Australia
| | - Saif Ur Rehman
- Department of Reproductive Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, 106 Zhongshan 2nd Road, Guangzhou, 510080, China
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico.
| | - Ishtiaq Ahmed
- La Trobe Rural Health School, Albury-Wodonga Campus, La Trobe University, Victoria, 3690, Australia.
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Qian GY, Edmunds WJ, Bausch DG, Jombart T. A mathematical model of Marburg virus disease outbreaks and the potential role of vaccination in control. BMC Med 2023; 21:439. [PMID: 37964296 PMCID: PMC10648709 DOI: 10.1186/s12916-023-03108-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 10/10/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND Marburg virus disease is an acute haemorrhagic fever caused by Marburg virus. Marburg virus is zoonotic, maintained in nature in Egyptian fruit bats, with occasional spillover infections into humans and nonhuman primates. Although rare, sporadic cases and outbreaks occur in Africa, usually associated with exposure to bats in mines or caves, and sometimes with secondary human-to-human transmission. Outbreaks outside of Africa have also occurred due to importation of infected monkeys. Although all previous Marburg virus disease outbreaks have been brought under control without vaccination, there is nevertheless the potential for large outbreaks when implementation of public health measures is not possible or breaks down. Vaccines could thus be an important additional tool, and development of several candidate vaccines is under way. METHODS We developed a branching process model of Marburg virus transmission and investigated the potential effects of several prophylactic and reactive vaccination strategies in settings driven primarily by multiple spillover events as well as human-to-human transmission. Linelist data from the 15 outbreaks up until 2022, as well as an Approximate Bayesian Computational framework, were used to inform the model parameters. RESULTS Our results show a low basic reproduction number which varied across outbreaks, from 0.5 [95% CI 0.05-1.8] to 1.2 [95% CI 1.0-1.9] but a high case fatality ratio. Of six vaccination strategies explored, the two prophylactic strategies (mass and targeted vaccination of high-risk groups), as well as a combination of ring and targeted vaccination, were generally most effective, with a probability of potential outbreaks being terminated within 1 year of 0.90 (95% CI 0.90-0.91), 0.89 (95% CI 0.88-0.90), and 0.88 (95% CI 0.87-0.89) compared with 0.68 (0.67-0.69) for no vaccination, especially if the outbreak is driven by zoonotic spillovers and the vaccination campaign initiated as soon as possible after onset of the first case. CONCLUSIONS Our study shows that various vaccination strategies can be effective in helping to control outbreaks of MVD, with the best approach varying with the particular epidemiologic circumstances of each outbreak.
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Affiliation(s)
- George Y Qian
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK.
- Department of Engineering Mathematics, University of Bristol, Bristol, UK.
| | - W John Edmunds
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | - Daniel G Bausch
- FIND, Geneva, Switzerland
- Department of Disease Control, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | - Thibaut Jombart
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK
- MRC Centre for Global Infectious Disease Analysis, Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK
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Srivastava D, Kutikuppala LVS, Shanker P, Sahoo RN, Pattnaik G, Dash R, Kandi V, Ansari A, Mishra S, Desai DN, Mohapatra RK, Rabaan AA, Kudrat‐E‐Zahan M. The neglected continuously emerging Marburg virus disease in Africa: A global public health threat. Health Sci Rep 2023; 6:e1661. [PMID: 37908639 PMCID: PMC10613755 DOI: 10.1002/hsr2.1661] [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: 03/22/2023] [Revised: 10/09/2023] [Accepted: 10/11/2023] [Indexed: 11/02/2023] Open
Abstract
Background and Aim Severe viral hemorrhagic fever (VHF) is caused by Marburg virus which is a member of the Filoviridae (filovirus) family. Many Marburg virus disease (MVD) outbreaks are reported in five decades. A major notable outbreak with substantial reported cases of infections and deaths was in 2022 in Uganda. The World Health Organisation (WHO) reported MVD outbreak in Ghana in July 2022 following the detection of two probable VHF patients there. Further, the virus was reported from two other African countries, the Equatorial Guinea (February 2023) and Tanzania (March 2023). There have been 35 deaths out of 40 reported cases in Equatorial Guinea, and six of the nine confirmed cases in Tanzania so far. Methods Data particularly on the several MVD outbreaks as reported from the African countries were searched on various databases including the Pubmed, Scopus, and Web-of-science. Also, the primary data and reports from health agencies like the WHO and the Centers for Disease Control and Prevention CDC) were evaluated and the efficacy reviewed. Results Chiroptera in general and bat species like Rousettus aegyptiacus and Hipposideros caffer in particular are natural reservoirs of the Marburg virus. MVD-infected nonhuman primate African fruit-bat and the MVD-infected humans pose significant risk in human infections. Cross-border viral transmission and its potential further international ramification concerns raise the risk of its rapid spread and a potential outbreak. Occurrence of MVD is becoming more frequent in Africa with higher case fatality rates. Effective prophylactic and therapeutic interventions to counter this deadly virus are suggested. Conclusion In the face of the lack of effective therapeutics and preventives against MVD, supportive care is the only available option which contributes to the growing concern and disease severity. In view of the preventive approaches involving effective surveillance and monitoring system following the "One Health" model is extremely beneficial to ensure a healthy world for all, this article aims at emphasizing several MVD outbreaks, epidemiology, zoonosis of the virus, current treatment strategies, risk assessments, and the mitigation strategies against MVD.
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Affiliation(s)
- Devang Srivastava
- Department of General MedicineKakatiya Medical CollegeRangam Peta StreetWarangalTelanganaIndia
| | | | - Pooja Shanker
- Department of MicrobiologySMS Medical CollegeGangawal Park, Adarsh NagarJaipurRajastanIndia
| | - Rudra Narayan Sahoo
- School of Pharmaceutical SciencesSiksha‐O‐Anusandhan Deemed‐to‐be‐UniversityBhubaneswarOdishaIndia
| | - Gurudutta Pattnaik
- School of Pharmacy and Life SciencesCenturion University of Technology and ManagementOdishaIndia
| | - Rasmita Dash
- School of Pharmacy and Life SciencesCenturion University of Technology and ManagementOdishaIndia
| | - Venkataramana Kandi
- Department of MicrobiologyPrathima Institute of Medical SciencesKarimnagarTelanganaIndia
| | - Azaj Ansari
- Department of ChemistryCentral University of HaryanaMahendergarhHaryanaIndia
| | - Snehasish Mishra
- School of BiotechnologyKIIT Deemed‐to‐be UniversityBhubaneswarOdishaIndia
| | - Dhruv N. Desai
- School of Veterinary Medicine, Ryan Veterinary HospitalUniversity of PennsylvaniaPhiladelphiaPennsylvaniaUSA
| | | | - Ali A. Rabaan
- Molecular Diagnostic LaboratoryJohns Hopkins Aramco HealthcareDhahranSaudi Arabia
- Department of Medicine, College of MedicineAlfaisal UniversityRiyadhSaudi Arabia
- Department of Public Health and NutritionThe University of HaripurHaripurPakistan
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Srivastava S, Sharma D, Kumar S, Sharma A, Rijal R, Asija A, Adhikari S, Rustagi S, Sah S, Al-qaim ZH, Bashyal P, Mohanty A, Barboza JJ, Rodriguez-Morales AJ, Sah R. Emergence of Marburg virus: a global perspective on fatal outbreaks and clinical challenges. Front Microbiol 2023; 14:1239079. [PMID: 37771708 PMCID: PMC10526840 DOI: 10.3389/fmicb.2023.1239079] [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: 06/12/2023] [Accepted: 08/25/2023] [Indexed: 09/30/2023] Open
Abstract
The Marburg virus (MV), identified in 1967, has caused deadly outbreaks worldwide, the mortality rate of Marburg virus disease (MVD) varies depending on the outbreak and virus strain, but the average case fatality rate is around 50%. However, case fatality rates have varied from 24 to 88% in past outbreaks depending on virus strain and case management. Designated a priority pathogen by the National Institute of Allergy and Infectious Diseases (NIAID), MV induces hemorrhagic fever, organ failure, and coagulation issues in both humans and non-human primates. This review presents an extensive exploration of MVD outbreak evolution, virus structure, and genome, as well as the sources and transmission routes of MV, including human-to-human spread and involvement of natural hosts such as the Egyptian fruit bat (Rousettus aegyptiacus) and other Chiroptera species. The disease progression involves early viral replication impacting immune cells like monocytes, macrophages, and dendritic cells, followed by damage to the spleen, liver, and secondary lymphoid organs. Subsequent spread occurs to hepatocytes, endothelial cells, fibroblasts, and epithelial cells. MV can evade host immune response by inhibiting interferon type I (IFN-1) synthesis. This comprehensive investigation aims to enhance understanding of pathophysiology, cellular tropism, and injury sites in the host, aiding insights into MVD causes. Clinical data and treatments are discussed, albeit current methods to halt MVD outbreaks remain elusive. By elucidating MV infection's history and mechanisms, this review seeks to advance MV disease treatment, drug development, and vaccine creation. The World Health Organization (WHO) considers MV a high-concern filovirus causing severe and fatal hemorrhagic fever, with a death rate ranging from 24 to 88%. The virus often spreads through contact with infected individuals, originating from animals. Visitors to bat habitats like caves or mines face higher risk. We tailored this search strategy for four databases: Scopus, Web of Science, Google Scholar, and PubMed. we primarily utilized search terms such as "Marburg virus," "Epidemiology," "Vaccine," "Outbreak," and "Transmission." To enhance comprehension of the virus and associated disease, this summary offers a comprehensive overview of MV outbreaks, pathophysiology, and management strategies. Continued research and learning hold promise for preventing and controlling future MVD outbreaks. GRAPHICAL ABSTRACT.
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Affiliation(s)
- Shriyansh Srivastava
- Department of Pharmacology, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi, India
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida, India
| | - Deepika Sharma
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida, India
| | - Sachin Kumar
- Department of Pharmacology, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi, India
| | - Aditya Sharma
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida, India
| | - Rishikesh Rijal
- Division of Infectious Diseases, University of Louisville, Louisville, KY, United States
| | - Ankush Asija
- WVU United Hospital Center, Bridgeport, WV, United States
| | | | - Sarvesh Rustagi
- School of Applied and Life Sciences, Uttaranchal University, Dehradun, Uttarakhand, India
| | - Sanjit Sah
- Global Consortium for Public Health and Research, Datta Meghe Institute of Higher Education and Research, Jawaharlal Nehru Medical College, Wardha, India
- Department of Anesthesia Techniques, SR Sanjeevani Hospital, Siraha, Nepal
| | | | - Prashant Bashyal
- Lumbini Medical College and Teaching Hospital, Kathmandu University Parvas, Palpa, Nepal
| | - Aroop Mohanty
- Department of Clinical Microbiology, All India Institute of Medical Sciences, Gorakhpur, Uttar Pradesh, India
| | | | - Alfonso J. Rodriguez-Morales
- Master Program on Clinical Epidemiology and Biostatistics, Universidad Científica del Sur, Lima, Peru
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut, Lebanon
| | - Ranjit Sah
- Department of Microbiology, Tribhuvan University Teaching Spital, Institute of Medicine, Kathmandu, Nepal
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D. Y. Patil Vidyapeeth, Pune, Maharashtra, India
- Department of Public Health Dentistry, Dr. D. Y. Patil Dental College and Hospital, Dr. D. Y. Patil Vidyapeeth, Pune, Maharashtra, India
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Alla D, Paruchuri SSH, Tiwari A, Alla SSM, Pillai RT, Bandakadi SKR, Pradeep A, Shah DJ, Sabıroğlu M, Chavda S, Biziyaremye P. The mortality, modes of infection, diagnostic tests, and treatments of Marburg virus disease: A systematic review. Health Sci Rep 2023; 6:e1545. [PMID: 37662539 PMCID: PMC10471912 DOI: 10.1002/hsr2.1545] [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: 05/19/2023] [Revised: 07/11/2023] [Accepted: 08/22/2023] [Indexed: 09/05/2023] Open
Abstract
Background and Aims Marburg virus (MARV) has regularly affected people since 1967 causing multiple outbreaks. There are presently no authorized therapies for the fatal Marburg virus disease (MVD), which poses an imminent risk to global public health. The MVD has so far claimed the lives of numerous people, with an increased number of cases being seen throughout the African continent. Hence, a review was carried out to analyze the geographical distribution of MVD, mortality, routes of transmission, and diagnostic and treatment modalities. Methods PubMed, Scopus, Web of Science, Google Scholar, and ProMED servers were used to conduct a systematic search in compliance with the PRISMA guidelines. The results were tabulated and analyzed. Results A total of 11 studies (7 case reports and 4 case series) were included in the final analysis, and 21 cases of MVD were analyzed. The most frequent symptoms were fever (66.67%), vomiting (57.14%), headache (52.38%), diarrhea (52.38%), and pain (47.62%). The most commonly used diagnostic test was RT-PCR (42.11%). Contact transmission (50%) and zoonotic transmission (37.5%) were the most prevalent routes of transmission. Antibiotics (61.5%) were the first line of treatment. The most common complications were hemorrhage (60%) and coagulopathies (33.3%). The mortality rate was 57.1%. Conclusion To avoid disastrous consequences, it is essential to reiterate the necessity of early diagnosis and treatment of MVD.
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Affiliation(s)
- Deekshitha Alla
- Department of MedicineAndhra Medical CollegeVisakhapatnamAndhra PradeshIndia
| | - Sai Sri Hari Paruchuri
- Dr. Pinnamaneni Siddhartha Institute of Medical Sciences and Research FoundationChina AvutapalleAndhra PradeshIndia
| | - Angad Tiwari
- Maharani Laxmi Bai Medical CollegeJhansiUttar PradeshIndia
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Sibomana O, Kubwimana E. First-ever Marburg virus disease outbreak in Equatorial Guinea and Tanzania: An imminent crisis in West and East Africa. Immun Inflamm Dis 2023; 11:e980. [PMID: 37647447 PMCID: PMC10461415 DOI: 10.1002/iid3.980] [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: 05/28/2023] [Revised: 07/30/2023] [Accepted: 08/03/2023] [Indexed: 09/01/2023] Open
Abstract
The Marburg virus, which is a member of the same virus family as the Ebola virus called Filoviridae, causes the severe infectious disease known as Marburg virus disease (MVD). Previously, different outbreaks of MVD have appeared in different African countries, including Ghana, Guinea, Uganda, Angola, the Democratic Republic of the Congo, Kenya, and South Africa. For the first time, Equatorial Guinea and Tanzania are experiencing MVD outbreaks. A total of 17 laboratory-confirmed cases of MVD and 23 probable cases have been reported in Equatorial Guinea since the confirmation of the outbreak on February 13, 2023. The first MVD outbreak in the United Republic of Tanzania was formally confirmed by the Ministry of Health on March 21, 2023. As of 22 March, there were eight cases and five fatalities (case fatality ratio [CFR]: 62.5%). Due to the facts that Ebebiyin and Nsock Nsomo districts, the affected regions of Equatorial Guinea, borders Cameroon and Gabon, and Kagera region, the affected region of Tanzania, borders Uganda, Rwanda, and Burundi, there is fear of cross-border spread of MVD due to cross-border migrations, and this can be a great crisis in West and East Africa. Although there are currently outbreaks of MVD in Equatorial Guinea and Tanzania, there is currently no proof of an epidemiological connection between the two outbreaks. The aim of this article is to describe MVD, describe its first outbreak in Equatorial Guinea and Tanzania, explain the efforts being used and the challenges being faced in MVD mitigation, and recommend different measures to be taken to cope with the outbreak of MVD in Equatorial Guinea and Tanzania.
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Affiliation(s)
- Olivier Sibomana
- Department of General Medicine and Surgery, College of Medicine and Health SciencesUniversity of RwandaKigaliRwanda
| | - Emmanuel Kubwimana
- Department of Dental Surgery, College of Medicine and Health SciencesUniversity of RwandaKigaliRwanda
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Al Mashud MA, Kumer A, Mukerjee N, Chandro A, Maitra S, Chakma U, Dey A, Akash S, Alexiou A, Khan AA, Alanazi AM, Ghosh A, Chen KT, Sharma R. Mechanistic inhibition of Monkeypox and Marburg virus infection by O-rhamnosides and Kaempferol-o-rhamnosides derivatives: a new-fangled computational approach. Front Cell Infect Microbiol 2023; 13:1188763. [PMID: 37293201 PMCID: PMC10245557 DOI: 10.3389/fcimb.2023.1188763] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 04/26/2023] [Indexed: 06/10/2023] Open
Abstract
The increasing incidence of Monkeypox virus (Mpox) and Marburg virus (MARV) infections worldwide presents a significant challenge to global health, as limited treatment options are currently available. This study investigates the potential of several O-rhamnosides and Kaempferol-O-rhamnosides as Mpox and MARV inhibitors using molecular modeling methods, including ADMET, molecular docking, and molecular dynamics/MD simulation. The effectiveness of these compounds against the viruses was assessed using the Prediction of Activity Spectra for Substances (PASS) prediction. The study's primary focus is molecular docking prediction, which demonstrated that ligands (L07, L08, and L09) bind to Mpox (PDB ID: 4QWO) and MARV (PDB ID: 4OR8) with binding affinities ranging from -8.00 kcal/mol to -9.5 kcal/mol. HOMO-LUMO based quantum calculations were employed to determine the HOMO-LUMO gap of frontier molecular orbitals (FMOs) and to estimate chemical potential, electronegativity, hardness, and softness. Drug similarity and ADMET prediction assessments of pharmacokinetic properties revealed that the compounds were likely non-carcinogenic, non-hepatotoxic, and rapidly soluble. Molecular dynamic (MD) modeling was used to identify the most favorable docked complexes involving bioactive chemicals. MD simulations indicate that varying types of kaempferol-O-rhamnoside are necessary for successful docking validation and maintaining the stability of the docked complex. These findings could facilitate the discovery of novel therapeutic agents for treating illnesses caused by the Mpox and MARV viruses.
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Affiliation(s)
- Md. Abdullah Al Mashud
- Biophysics and Biomedicine Research Lab, Department of Electrical & Electronic Engineering, Islamic University, Kushtia, Bangladesh
| | - Ajoy Kumer
- Laboratory of Computational Research for Drug Design and Material Science, Department of Chemistry, European University of Bangladesh, Dhaka, Bangladesh
| | - Nobendu Mukerjee
- Department of Microbiology, West Bengal State University, West Bengal, Kolkata, India
- Department of Health Sciences, Novel Global Community Educational Foundation, Habersham, NSW, Australia
| | - Akhel Chandro
- Department of Poultry Science, Faculty of Animal Science & Veterinary Medicine, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
| | - Swastika Maitra
- Department of Microbiology, Adamas University, West Bengal, Kolkata, India
| | - Unesco Chakma
- Laboratory of Computational Research for Drug Design and Material Science, Department of Chemistry, European University of Bangladesh, Dhaka, Bangladesh
- School of Electronic Science and Engineering, Southeast University, Nanjing, China
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, Kolkata, West Bengal, India
| | - Shopnil Akash
- Department of Pharmacy, Daffodil International University, Sukrabad, Dhaka, Bangladesh
| | - Athanasiosis Alexiou
- Department of Science and Engineering, Novel Global Community Educational Foundation, Habersham, NSW, Australia
- Department of Neuroscience, AFNP Med, Wien, Austria
| | - Azmat Ali Khan
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Amer M. Alanazi
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Arabinda Ghosh
- Microbiology Division, Department of Botany, Gauhati University, Assam, India
| | - Kow-Tong Chen
- Department of Occupational Medicine, Tainan Municipal Hospital (managed by Show Chwan Medical Care Corporation), Tainan, Taiwan
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Rohit Sharma
- Department of Rasa Shastra and Bhaishajya Kalpana, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Fawole OI, Bello S, Adebowale AS, Bamgboye EA, Salawu MM, Afolabi RF, Dairo MD, Namale A, Kiwanuka S, Monje F, Namuhani N, Kabwama S, Kizito S, Ndejjo R, Seck I, Diallo I, Makhtar M, Leye M, Ndiaye Y, Fall M, Bassoum O, Mapatano MA, Bosonkie M, Egbende L, Lazenby S, Wang W, Liu A, Bartlein R, Sambisa W, Wanyenze R. COVID-19 surveillance in Democratic Republic of Congo, Nigeria, Senegal and Uganda: strengths, weaknesses and key Lessons. BMC Public Health 2023; 23:835. [PMID: 37158897 PMCID: PMC10165588 DOI: 10.1186/s12889-023-15708-6] [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: 11/23/2022] [Accepted: 04/19/2023] [Indexed: 05/10/2023] Open
Abstract
INTRODUCTION As part of efforts to rapidly identify and care for individuals with COVID-19, trace and quarantine contacts, and monitor disease trends over time, most African countries implemented interventions to strengthen their existing disease surveillance systems. This research describes the strengths, weaknesses and lessons learnt from the COVID-19 surveillance strategies implemented in four African countries to inform the enhancement of surveillance systems for future epidemics on the continent. METHODS The four countries namely the Democratic Republic of Congo (DRC), Nigeria, Senegal, and Uganda, were selected based on their variability in COVID-19 response and representation of Francophone and Anglophone countries. A mixed-methods observational study was conducted including desk review and key informant interviews, to document best practices, gaps, and innovations in surveillance at the national, sub-national, health facilities, and community levels, and these learnings were synthesized across the countries. RESULTS Surveillance approaches across countries included - case investigation, contact tracing, community-based, laboratory-based sentinel, serological, telephone hotlines, and genomic sequencing surveillance. As the COVID-19 pandemic progressed, the health systems moved from aggressive testing and contact tracing to detect virus and triage individual contacts into quarantine and confirmed cases, isolation and clinical care. Surveillance, including case definitions, changed from contact tracing of all contacts of confirmed cases to only symptomatic contacts and travelers. All countries reported inadequate staffing, staff capacity gaps and lack of full integration of data sources. All four countries under study improved data management and surveillance capacity by training health workers and increasing resources for laboratories, but the disease burden was under-detected. Decentralizing surveillance to enable swifter implementation of targeted public health measures at the subnational level was a challenge. There were also gaps in genomic and postmortem surveillance including community level sero-prevalence studies, as well as digital technologies to provide more timely and accurate surveillance data. CONCLUSION All the four countries demonstrated a prompt public health surveillance response and adopted similar approaches to surveillance with some adaptations as the pandemic progresses. There is need for investments to enhance surveillance approaches and systems including decentralizing surveillance to the subnational and community levels, strengthening capabilities for genomic surveillance and use of digital technologies, among others. Investing in health worker capacity, ensuring data quality and availability and improving ability to transmit surveillance data between and across multiple levels of the health care system is also critical. Countries need to take immediate action in strengthening their surveillance systems to better prepare for the next major disease outbreak and pandemic.
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Affiliation(s)
| | - Segun Bello
- Department of Preventive Medicine and Public Health, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Ayo Stephen Adebowale
- Department of Preventive Medicine and Public Health, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Eniola Adetola Bamgboye
- Department of Preventive Medicine and Public Health, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Mobolaji Modinat Salawu
- Department of Preventive Medicine and Public Health, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Rotimi Felix Afolabi
- Department of Preventive Medicine and Public Health, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Magbagbeola David Dairo
- Department of Preventive Medicine and Public Health, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Alice Namale
- Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda
| | - Suzanne Kiwanuka
- Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda
| | - Fred Monje
- Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda
| | - Noel Namuhani
- Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda
| | - Steven Kabwama
- Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda
| | - Susan Kizito
- Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda
| | - Rawlance Ndejjo
- Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda
| | - Ibrahima Seck
- Department of Preventive Medicine and Public Health, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Issakha Diallo
- Department of Preventive Medicine and Public Health, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Mamadou Makhtar
- Department of Preventive Medicine and Public Health, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Mbacke Leye
- Department of Preventive Medicine and Public Health, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Youssou Ndiaye
- Department of Preventive Medicine and Public Health, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Manel Fall
- Department of Preventive Medicine and Public Health, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Oumar Bassoum
- Department of Preventive Medicine and Public Health, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Mala Ali Mapatano
- Kinshasa, School of Public Health, Kinshasa, Democratic Republic of Congo
| | - Marc Bosonkie
- Kinshasa, School of Public Health, Kinshasa, Democratic Republic of Congo
| | - Landry Egbende
- Kinshasa, School of Public Health, Kinshasa, Democratic Republic of Congo
| | - Siobhan Lazenby
- Gates Ventures LLC, Exemplars in Global Health, Seattle, WA, USA
| | - William Wang
- Gates Ventures LLC, Exemplars in Global Health, Seattle, WA, USA
| | - Anne Liu
- Gates Ventures LLC, Exemplars in Global Health, Seattle, WA, USA
| | - Rebecca Bartlein
- Gates Ventures LLC, Exemplars in Global Health, Seattle, WA, USA
| | | | - Rhoda Wanyenze
- Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda
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11
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Dutuze MF, Byukusenge M, Shyaka A, Christofferson RC. A systematic review to describe patterns of animal and human viral research in Rwanda. Int Health 2023; 15:113-122. [PMID: 35650601 PMCID: PMC9384174 DOI: 10.1093/inthealth/ihac031] [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: 12/02/2021] [Revised: 03/22/2022] [Accepted: 05/05/2022] [Indexed: 12/02/2022] Open
Abstract
Rwanda is located in the Central East African region where several viral pathogens with global importance were originally described, including human immunodeficiency virus (HIV), Ebola, Zika, Rift Valley Fever (RVF), dengue and a long list of other neglected tropical viral pathogens. Due to many factors, this region has the potential to become a global hotspot for viral emergence. In Rwanda, viral diseases are underreported and the question is whether this is due to the absence of these viruses or a lack of investigation. Like many developing countries, capabilities in Rwanda need improvement despite research efforts throughout the years. This review describes the status of human and animal virus research in Rwanda and identifies relevant research and operational gaps. A comprehensive search was conducted in PubMed for virus research in Rwanda: 233 primary studies on viruses/viral diseases are indexed with connection to Rwanda. From 1958 to 2020, yearly publications generally increased and HIV/acquired immunodeficiency syndrome is the most studied virus. Compared with human viruses, few studies focus on animal and/or zoonotic viruses. The occurrence of the current severe acute respiratory syndrome coronavirus 2 pandemic shows strengthening warning and surveillance systems is critical to efficient preparedness and response. We recommend investment in human capacity, laboratory facilities and research to inform policy for viral surveillance in Rwanda.
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Affiliation(s)
- M Fausta Dutuze
- Rwanda Institute for Conservation Agriculture, Gashora, Bugesera, Rwanda
| | - Maurice Byukusenge
- Animal Diagnostic Laboratory, Pennsylvania State University, University Park, PA 16802, USA
| | - Anselme Shyaka
- College of Agriculture and Animal Sciences and Veterinary Medicine, University of Rwanda, Kigali, Rwanda.,Center for One Health, University of Global Health Equity, 23WV + R53, Kigali, Rwanda
| | - Rebecca C Christofferson
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
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12
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Eneh SC, Okonji OC, Chiburoma AG, Francisca Ogochukwu O, Tuwleh L, Gideon I, Okonji EF, Bushabu FN, Mgbere O. Marburg virus disease amid COVID-19 in West Africa: an emerging and re-emerging zoonotic epidemic threat, future implications and way forward. Ther Adv Infect Dis 2023; 10:20499361231168520. [PMID: 37101696 PMCID: PMC10125885 DOI: 10.1177/20499361231168520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 03/06/2023] [Accepted: 03/22/2023] [Indexed: 04/28/2023] Open
Affiliation(s)
| | | | | | | | - Levi Tuwleh
- Department of Community Health, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Inyangudo Gideon
- Department of Community Health, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Emeka Francis Okonji
- School of Public Health, University of the Western Cape, Cape Town, South Africa
| | - Fidele Nyimi Bushabu
- Service of Oral and Maxilla-Facial Surgery, Department of Dental Medicine, Faculty of Medicine, University of Kinshasa, Kinshasa, Democratic Republic of the Congo
- National Center Laboratory of Oral Biomedicine Ministry of Research Innovation and Technology, Democratic Republic of the Congo, Kinshasa
| | - Osaro Mgbere
- Department of Health Systems and population Health Sciences, Tilman J. Fertitta Family College of Medicine, University of Houston, Houston, TX, USA
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13
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Sohan M, Shahriar M, Bhuiyan MA, Islam MR. Recent outbreak of Marburg virus disease: Could it be a threat for global public health? Health Sci Rep 2023; 6:e971. [DOI: 10.1002/hsr2.971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 10/27/2022] [Accepted: 11/18/2022] [Indexed: 12/02/2022] Open
Affiliation(s)
- Md. Sohan
- Department of Pharmacy University of Asia Pacific Farmgate, Dhaka Bangladesh
| | - Mohammad Shahriar
- Department of Pharmacy University of Asia Pacific Farmgate, Dhaka Bangladesh
| | | | - Md. Rabiul Islam
- Department of Pharmacy University of Asia Pacific Farmgate, Dhaka Bangladesh
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14
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Markin VA. Marburg virus and the disease it causes. JOURNAL OF MICROBIOLOGY, EPIDEMIOLOGY AND IMMUNOBIOLOGY 2022. [DOI: 10.36233/0372-9311-273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Over the 50 years since its discovery, many properties of the Marburg virus have been studied, but no reliable medical remedies of preventing and treating the infection it causes have been developed, although it can potentially cause large-scale epidemics.
Marburg fever is relevant due to the risk of importation to other countries. The source of infection in nature is bats (reservoir) and monkeys (intermediate host), and the routes of transmission are aerosol, contact and alimentary. The mortality rate in recent outbreaks has reached 90%. In convalescents the causative agent was identified in tears, semen, and liver biopsies weeks and months after recovery.
The lack of therapeutic and prophylactic antiviral drugs, high rates of mortality, infectivity, the ability of aerosol contamination, and a high epidemic potential all together define Marburg fever as a serious global threat to international health. The development of medical protection against this infection should be an urgent task of ensuring the biological safety of the population of the Russian Federation.
The most promising ways to develop vaccines against Marburg fever are the construction of recombinants based on adenovirus, vesicular stomatitis virus or alphavirus replicon, DNA vaccines. A reliable protective effect of the chemotherapy drug remdesivir in combination with human antibodies, as well as an etiotropic drug with an antisense mechanism of action and an interferon inducer has been shown. In model experiments with pseudovirus, fundamentally new ways of developing pathogen inhibitors were found preventing its exit from cells, as well as the construction of anti-gene-binding Fab fragments that inhibit the synthesis of viral RNA.
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15
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Abir MH, Rahman T, Das A, Etu SN, Nafiz IH, Rakib A, Mitra S, Emran TB, Dhama K, Islam A, Siyadatpanah A, Mahmud S, Kim B, Hassan MM. Pathogenicity and virulence of Marburg virus. Virulence 2022; 13:609-633. [PMID: 35363588 PMCID: PMC8986239 DOI: 10.1080/21505594.2022.2054760] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/10/2022] [Accepted: 03/13/2022] [Indexed: 12/25/2022] Open
Abstract
Marburg virus (MARV) has been a major concern since 1967, with two major outbreaks occurring in 1998 and 2004. Infection from MARV results in severe hemorrhagic fever, causing organ dysfunction and death. Exposure to fruit bats in caves and mines, and human-to-human transmission had major roles in the amplification of MARV outbreaks in African countries. The high fatality rate of up to 90% demands the broad study of MARV diseases (MVD) that correspond with MARV infection. Since large outbreaks are rare for MARV, clinical investigations are often inadequate for providing the substantial data necessary to determine the treatment of MARV disease. Therefore, an overall review may contribute to minimizing the limitations associated with future medical research and improve the clinical management of MVD. In this review, we sought to analyze and amalgamate significant information regarding MARV disease epidemics, pathophysiology, and management approaches to provide a better understanding of this deadly virus and the associated infection.
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Affiliation(s)
- Mehedy Hasan Abir
- Faculty of Food Science and Technology, Chattogram Veterinary and Animal Sciences University, Chittagong, Bangladesh
| | - Tanjilur Rahman
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Ayan Das
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Silvia Naznin Etu
- Department of Genetic Engineering and Biotechnology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Iqbal Hossain Nafiz
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Ahmed Rakib
- Department of Pharmacy, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Saikat Mitra
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka, Bangladesh
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong, Bangladesh
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Bareilly, India
| | - Ariful Islam
- EcoHealth Alliance, New York, NY, USA
- Centre for Integrative Ecology, School of Life and Environmental Science, Deakin University, Victoria, Australia
| | - Abolghasem Siyadatpanah
- Ferdows School of Paramedical and Health, Birjand University of Medical Sciences, Birjand, Iran
| | - Shafi Mahmud
- Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, Bangladesh
| | - Bonlgee Kim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, Korea
| | - Mohammad Mahmudul Hassan
- Queensland Alliance for One Health Sciences, School of Veterinary Sciences, The University of Queensland, Gatton, Australia
- Department of Physiology, Biochemistry and Pharmacology, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Chattogram, Bangladesh
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16
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Marburg virus outbreak in Ghana: An impending crisis. Ann Med Surg (Lond) 2022; 81:104377. [PMID: 36051815 PMCID: PMC9424924 DOI: 10.1016/j.amsu.2022.104377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 08/11/2022] [Indexed: 11/21/2022] Open
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17
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Kayiwa J, Homsy J, Nelson LJ, Ocom F, Kasule JN, Wetaka MM, Kyazze S, Mwanje W, Kisakye A, Nabunya D, Nyirabakunzi M, Aliddeki DM, Ojwang J, Boore A, Kasozi S, Borchert J, Shoemaker T, Nabatanzi S, Dahlke M, Brown V, Downing R, Makumbi I. Establishing a Public Health Emergency Operations Center in an Outbreak-Prone Country: Lessons Learned in Uganda, January 2014 to December 2021. Health Secur 2022; 20:394-407. [PMID: 35984936 PMCID: PMC10985018 DOI: 10.1089/hs.2022.0048] [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: 11/13/2022] Open
Abstract
Uganda is highly vulnerable to public health emergencies (PHEs) due to its geographic location next to the Congo Basin epidemic hot spot, placement within multiple epidemic belts, high population growth rates, and refugee influx. In view of this, Uganda's Ministry of Health established the Public Health Emergency Operations Center (PHEOC) in September 2013, as a central coordination unit for all PHEs in the country. Uganda followed the World Health Organization's framework to establish the PHEOC, including establishing a steering committee, acquiring legal authority, developing emergency response plans, and developing a concept of operations. The same framework governs the PHEOC's daily activities. Between January 2014 and December 2021, Uganda's PHEOC coordinated response to 271 PHEs, hosted 207 emergency coordination meetings, trained all core staff in public health emergency management principles, participated in 21 simulation exercises, coordinated Uganda's Global Health Security Agenda activities, established 6 subnational PHEOCs, and strengthened the capacity of 7 countries in public health emergency management. In this article, we discuss the following lessons learned: PHEOCs are key in PHE coordination and thus mitigate the associated adverse impacts; although the functions of a PHEOC may be legalized by the existence of a National Institute of Public Health, their establishment may precede formally securing the legal framework; staff may learn public health emergency management principles on the job; involvement of leaders and health partners is crucial to the success of a public health emergency management program; subnational PHEOCs are resourceful in mounting regional responses to PHEs; and service on the PHE Strategic Committee may be voluntary.
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Affiliation(s)
- Joshua Kayiwa
- Joshua Kayiwa, MSc, is a Plans Chief and Information Analyst, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Jaco Homsy
- Jaco Homsy, MD, MPH, is an Associate Clinical Professor, Epidemiology and Biostatistics, Institute for Global Health Sciences, University of California San Francisco School of Medicine, San Francisco, CA
| | - Lisa J Nelson
- Lisa J. Nelson, MD, MPH, MSc, is a Medical Officer and Uganda Country Director, US Centers for Disease Control and Prevention (CDC) Country Office, Kampala, Uganda
| | - Felix Ocom
- Felix Ocom, MD, is Deputy Director, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Juliet N Kasule
- Juliet N. Kasule, MSc, is an Early Warning Specialist, US Centers for Disease Control and Prevention (CDC) Country Office, Kampala, Uganda
| | - Milton M Wetaka
- Milton M. Wetaka is a Logistics Chief and Laboratory Specialist, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Simon Kyazze
- Simon Kyazze, MSc, is an Operations Chief, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Wilbrod Mwanje
- Wilbrod Mwanje, MPH, is an Epidemiologist, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Anita Kisakye
- Anita Kisakye, MSc, is a Monitoring and Evaluation Specialist, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Dorothy Nabunya
- Dorothy Nabunya is an Administrative Specialist, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Margaret Nyirabakunzi
- Margaret Nyirabakunzi is an Administrative Assistant, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Dativa Maria Aliddeki
- Dativa Maria Aliddeki, MSc, is an Epidemiologist, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
| | - Joseph Ojwang
- Joseph Ojwang, MPH, is an Epidemiologist, US Centers for Disease Control and Prevention (CDC) Country Office, Kampala, Uganda
| | - Amy Boore
- Amy Boore, PhD, is Director, Division of Global Health Protection, US Centers for Disease Control and Prevention (CDC) Country Office, Kampala, Uganda
| | - Sam Kasozi
- Sam Kasozi is a Systems Developer, Health Information Systems Program Uganda, Kampala, Uganda
| | - Jeff Borchert
- Jeff Borchert, MSc, is a Public Health Advisor, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), US CDC, Fort Collins, CO
| | - Trevor Shoemaker
- Trevor Shoemaker, PhD, is an Epidemiologist, Division of High-Consequence Pathogens and Pathology, NCEZIDUS CDC, Atlanta, GA
| | - Sandra Nabatanzi
- Sandra Nabatanzi, MSc, is an Epidemiologist, Monitoring and Evaluation Technical Support Program, Makerere University School of Public Health, Kampala, Uganda
| | - Melissa Dahlke
- Melissa Dahlke, MSc, is an Epidemiologist, Global Immunization Division, Center for Global Health, US CDC, Atlanta, GA
| | - Vance Brown
- Vance Brown, MA, is a Public Health Advisor, Division of Global Health Protection, NCEZID, US CDC, Atlanta, GA
| | - Robert Downing
- Robert Downing, PhD, is a Laboratory Specialist, Uganda Virus Research Institute, Ministry of Health, Entebbe, Uganda
| | - Issa Makumbi
- Issa Makumbi, MSc, is Director, Public Health Emergency Operations Center, Ministry of Health, Kampala, Uganda
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18
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Soltan MA, Abdulsahib WK, Amer M, Refaat AM, Bagalagel AA, Diri RM, Albogami S, Fayad E, Eid RA, Sharaf SMA, Elhady SS, Darwish KM, Eldeen MA. Mining of Marburg Virus Proteome for Designing an Epitope-Based Vaccine. Front Immunol 2022; 13:907481. [PMID: 35911751 PMCID: PMC9334820 DOI: 10.3389/fimmu.2022.907481] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 06/16/2022] [Indexed: 12/11/2022] Open
Abstract
Marburg virus (MARV) is one of the most harmful zoonotic viruses with deadly effects on both humans and nonhuman primates. Because of its severe outbreaks with a high rate of fatality, the world health organization put it as a risk group 4 pathogen and focused on the urgent need for the development of effective solutions against that virus. However, up to date, there is no effective vaccine against MARV in the market. In the current study, the complete proteome of MARV (seven proteins) was analyzed for the antigenicity score and the virulence or physiological role of each protein where we nominated envelope glycoprotein (Gp), Transcriptional activator (VP30), and membrane-associated protein (VP24) as the candidates for epitope prediction. Following that, a vaccine construct was designed based on CTL, HTL, and BCL epitopes of the selected protein candidates and to finalize the vaccine construct, several amino acid linkers, β-defensin adjuvant, and PADRE peptides were incorporated. The generated potential vaccine was assessed computationally for several properties such as antigenicity, allergenicity, stability, and other structural features where the outcomes of these assessments nominated this potential vaccine to be validated for its binding affinity with two molecular targets TLR-8 and TLR-4. The binding score and the stability of the vaccine-receptor complex, which was deeply studied through molecular docking-coupled dynamics simulation, supported the selection of our designed vaccine as a putative solution for MARV that should be validated through future wet-lab experiments. Here, we describe the computational approach for designing and analysis of this potential vaccine.
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Affiliation(s)
- Mohamed A. Soltan
- Department of Microbiology and Immunology, Faculty of Pharmacy, Sinai University, Ismailia, Egypt
- *Correspondence: Mohamed A. Soltan, ; Muhammad Alaa Eldeen,
| | - Waleed K. Abdulsahib
- Department of pharmacology and Toxicology, College of Pharmacy, Al- Farahidi University, Baghdad, Iraq
| | - Mahmoud Amer
- Internal Medicine Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Ahmed M. Refaat
- Zoology Department, Faculty of Science, Minia University, El-Minia, Egypt
| | - Alaa A. Bagalagel
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Reem M. Diri
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sarah Albogami
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia
| | - Eman Fayad
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia
| | - Refaat A. Eid
- Department of Pathology, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | | | - Sameh S. Elhady
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Khaled M. Darwish
- Department of Medicinal Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Muhammad Alaa Eldeen
- Cell Biology, Histology and Genetics Division, Zoology Department, Faculty of Science, Zagazig University, Zagazig, Egypt
- *Correspondence: Mohamed A. Soltan, ; Muhammad Alaa Eldeen,
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19
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Tian J, Sun J, Li D, Wang N, Wang L, Zhang C, Meng X, Ji X, Suchard MA, Zhang X, Lai A, Su S, Veit M. Emerging viruses: Cross-species transmission of coronaviruses, filoviruses, henipaviruses, and rotaviruses from bats. Cell Rep 2022; 39:110969. [PMID: 35679864 PMCID: PMC9148931 DOI: 10.1016/j.celrep.2022.110969] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 04/10/2022] [Accepted: 05/25/2022] [Indexed: 11/25/2022] Open
Abstract
Emerging infectious diseases, especially if caused by bat-borne viruses, significantly affect public health and the global economy. There is an urgent need to understand the mechanism of interspecies transmission, particularly to humans. Viral genetics; host factors, including polymorphisms in the receptors; and ecological, environmental, and population dynamics are major parameters to consider. Here, we describe the taxonomy, geographic distribution, and unique traits of bats associated with their importance as virus reservoirs. Then, we summarize the origin, intermediate hosts, and the current understanding of interspecies transmission of Middle East respiratory syndrome coronavirus (MERS-CoV), severe acute respiratory syndrome coronavirus (SARS-CoV), SARS-CoV-2, Nipah, Hendra, Ebola, Marburg virus, and rotaviruses. Finally, the molecular interactions of viral surface proteins with host cell receptors are examined, and a comparison of these interactions in humans, intermediate hosts, and bats is conducted. This uncovers adaptive mutations in virus spike protein that facilitate cross-species transmission and risk factors associated with the emergence of novel viruses from bats.
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Affiliation(s)
- Jin Tian
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Harbin 150069, China.
| | - Jiumeng Sun
- College of Veterinary Medicine, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, No. 1 Weigang, Nanjing 210095, China
| | - Dongyan Li
- College of Veterinary Medicine, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, No. 1 Weigang, Nanjing 210095, China
| | - Ningning Wang
- College of Veterinary Medicine, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, No. 1 Weigang, Nanjing 210095, China
| | - Lifang Wang
- College of Veterinary Medicine, China Agricultural University, No. 17 Qinghua Donglu, Beijing 100083, China
| | - Chang Zhang
- College of Veterinary Medicine, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, No. 1 Weigang, Nanjing 210095, China
| | - Xiaorong Meng
- Institute for Virology, Center for Infection Medicine, Veterinary Faculty, Free University Berlin, Robert-von-Ostertag-Str. 7, 14163 Berlin, Germany
| | - Xiang Ji
- Department of Mathematics, School of Science & Engineering, Tulane University, 6823 St., Charles Avenue, New Orleans, LA 70118, USA
| | - Marc A Suchard
- Departments of Biomathematics, Human Genetics and Biostatistics, David Geffen School of Medicine and Fielding School of Public Health, University of California, Los Angeles, Geffen Hall 885 Tiverton Drive, Los Angeles, CA 90095, USA
| | - Xu Zhang
- College of Veterinary Medicine, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, No. 1 Weigang, Nanjing 210095, China
| | - Alexander Lai
- School of Science, Technology, Engineering, and Mathematics, Kentucky State University, 400 East Main St., Frankfort, KY 40601, USA
| | - Shuo Su
- College of Veterinary Medicine, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, No. 1 Weigang, Nanjing 210095, China.
| | - Michael Veit
- Institute for Virology, Center for Infection Medicine, Veterinary Faculty, Free University Berlin, Robert-von-Ostertag-Str. 7, 14163 Berlin, Germany.
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20
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WWOX-Mediated Degradation of AMOTp130 Negatively Affects Egress of Filovirus VP40 VLPs. J Virol 2022; 96:e0202621. [PMID: 35107375 DOI: 10.1128/jvi.02026-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Ebola (EBOV) and Marburg (MARV) viruses continue to emerge and cause severe hemorrhagic disease in humans. A comprehensive understanding of the filovirus-host interplay will be crucial for identifying and developing antiviral strategies. The filoviral VP40 matrix protein drives virion assembly and egress, in part by recruiting specific WW-domain-containing host interactors via its conserved PPxY Late (L) domain motif to positively regulate virus egress and spread. In contrast to these positive regulators of virus budding, a growing list of WW-domain-containing interactors that negatively regulate virus egress and spread have been identified, including BAG3, YAP/TAZ and WWOX. In addition to host WW-domain regulators of virus budding, host PPxY-containing proteins also contribute to regulating this late stage of filovirus replication. For example, angiomotin (AMOT) is a multi-PPxY-containing host protein that functionally interacts with many of the same WW-domain-containing proteins that regulate virus egress and spread. In this report, we demonstrate that host WWOX, which negatively regulates egress of VP40 VLPs and recombinant VSV-M40 virus, interacts with and suppresses the expression of AMOT. We found that WWOX disrupts AMOT's scaffold-like tubular distribution and reduces AMOT localization at the plasma membrane via lysosomal degradation. In sum, our findings reveal an indirect and novel mechanism by which modular PPxY/WW-domain interactions between AMOT and WWOX regulate PPxY-mediated egress of filovirus VP40 VLPs. A better understanding of this modular network and competitive nature of protein-protein interactions will help to identify new antiviral targets and therapeutic strategies. IMPORTANCE Filoviruses (Ebola [EBOV] and Marburg [MARV]) are zoonotic, emerging pathogens that cause outbreaks of severe hemorrhagic fever in humans. A fundamental understanding of the virus-host interface is critical for understanding the biology of these viruses and for developing future strategies for therapeutic intervention. Here, we reveal a novel mechanism by which host proteins WWOX and AMOTp130 interact with each other and with the EBOV matrix protein VP40 to regulate VP40-mediated egress of virus like particles (VLPs). Our results highlight the biological impact of competitive interplay of modular virus-host interactions on both the virus lifecycle and the host cell.
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21
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Schuh AJ, Kyondo J, Graziano J, Balinandi S, Kainulainen MH, Tumusiime A, Nyakarahuka L, Mulei S, Baluku J, Lonergan W, Mayer O, Masereka R, Masereka F, Businge E, Gatare A, Kabyanga L, Muhindo S, Mugabe R, Makumbi I, Kayiwa J, Wetaka MM, Brown V, Ojwang J, Nelson L, Millard M, Nichol ST, Montgomery JM, Taboy CH, Lutwama JJ, Klena JD. Rapid establishment of a frontline field laboratory in response to an imported outbreak of Ebola virus disease in western Uganda, June 2019. PLoS Negl Trop Dis 2021; 15:e0009967. [PMID: 34860831 PMCID: PMC8673597 DOI: 10.1371/journal.pntd.0009967] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 12/15/2021] [Accepted: 11/03/2021] [Indexed: 12/12/2022] Open
Abstract
The Democratic Republic of the Congo (DRC) declared an Ebola virus disease (EVD) outbreak in North Kivu in August 2018. By June 2019, the outbreak had spread to 26 health zones in northeastern DRC, causing >2,000 reported cases and >1,000 deaths. On June 10, 2019, three members of a Congolese family with EVD-like symptoms traveled to western Uganda’s Kasese District to seek medical care. Shortly thereafter, the Viral Hemorrhagic Fever Surveillance and Laboratory Program (VHF program) at the Uganda Virus Research Institute (UVRI) confirmed that all three patients had EVD. The Ugandan Ministry of Health declared an outbreak of EVD in Uganda’s Kasese District, notified the World Health Organization, and initiated a rapid response to contain the outbreak. As part of this response, UVRI and the United States Centers for Disease Control and Prevention, with the support of Uganda’s Public Health Emergency Operations Center, the Kasese District Health Team, the Superintendent of Bwera General Hospital, the United States Department of Defense’s Makerere University Walter Reed Project, and the United States Mission to Kampala’s Global Health Security Technical Working Group, jointly established an Ebola Field Laboratory in Kasese District at Bwera General Hospital, proximal to an Ebola Treatment Unit (ETU). The laboratory consisted of a rapid containment kit for viral inactivation of patient specimens and a GeneXpert Instrument for performing Xpert Ebola assays. Laboratory staff tested 76 specimens from alert and suspect cases of EVD; the majority were admitted to the ETU (89.3%) and reported recent travel to the DRC (58.9%). Although no EVD cases were detected by the field laboratory, it played an important role in patient management and epidemiological surveillance by providing diagnostic results in <3 hours. The integration of the field laboratory into Uganda’s National VHF Program also enabled patient specimens to be referred to Entebbe for confirmatory EBOV testing and testing for other hemorrhagic fever viruses that circulate in Uganda. Following an imported outbreak of Ebola virus disease in Uganda’s western Kasese District, the Uganda Virus Research Institute and the United States Centers for Disease Control and Prevention jointly established a frontline field laboratory to test specimens collected from alert and suspect cases for Ebola virus disease. Using a single room equipped with a rapid containment kit to safely inactivate patient specimens and a GeneXpert to perform the Xpert Ebola Assay, the field laboratory rapidly ruled-out Ebola virus disease as the cause of illness in 76 patients during its 46 operational days. All specimens were also referred to Uganda Virus Research Institute (Entebbe) for confirmatory Ebola virus testing and testing against a panel of viruses known to cause hemorrhagic fever in Uganda, in line with the National Viral Hemorrhagic Fever Program’s testing protocol and mandate. The Ebola field laboratory served as a valuable asset in the outbreak response by supporting patient management and epidemiological surveillance.
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Affiliation(s)
- Amy J. Schuh
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, United States Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
- United States Public Health Service Commissioned Corps, Rockville, Maryland, United States of America
- * E-mail: (AJS); (JDK)
| | - Jackson Kyondo
- Department of Arbovirology, Emerging and Reemerging Infectious Diseases, Uganda Virus Research Institute, Entebbe, Uganda
| | - James Graziano
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, United States Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Stephen Balinandi
- Department of Arbovirology, Emerging and Reemerging Infectious Diseases, Uganda Virus Research Institute, Entebbe, Uganda
| | - Markus H. Kainulainen
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, United States Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Alex Tumusiime
- Department of Arbovirology, Emerging and Reemerging Infectious Diseases, Uganda Virus Research Institute, Entebbe, Uganda
| | - Luke Nyakarahuka
- Department of Arbovirology, Emerging and Reemerging Infectious Diseases, Uganda Virus Research Institute, Entebbe, Uganda
| | - Sophia Mulei
- Department of Arbovirology, Emerging and Reemerging Infectious Diseases, Uganda Virus Research Institute, Entebbe, Uganda
| | - Jimmy Baluku
- Department of Arbovirology, Emerging and Reemerging Infectious Diseases, Uganda Virus Research Institute, Entebbe, Uganda
| | - William Lonergan
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, United States Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Oren Mayer
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, United States Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
- United States Public Health Service Commissioned Corps, Rockville, Maryland, United States of America
| | | | | | | | | | | | | | - Raymond Mugabe
- Uganda Central Public Health Laboratories, Kampala, Uganda
| | - Issa Makumbi
- Uganda Public Health Emergency Operations Center, Kampala, Uganda
| | - Joshua Kayiwa
- Uganda Public Health Emergency Operations Center, Kampala, Uganda
| | | | - Vance Brown
- United States Centers for Disease Control and Prevention, Kampala, Uganda
| | - Joseph Ojwang
- United States Centers for Disease Control and Prevention, Kampala, Uganda
| | - Lisa Nelson
- United States Centers for Disease Control and Prevention, Kampala, Uganda
| | | | - Stuart T. Nichol
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, United States Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Joel M. Montgomery
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, United States Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
- United States Public Health Service Commissioned Corps, Rockville, Maryland, United States of America
| | - Celine H. Taboy
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, United States Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Julius J. Lutwama
- Department of Arbovirology, Emerging and Reemerging Infectious Diseases, Uganda Virus Research Institute, Entebbe, Uganda
| | - John D. Klena
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, United States Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
- * E-mail: (AJS); (JDK)
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22
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Marburg Virus Persistence on Fruit as a Plausible Route of Bat to Primate Filovirus Transmission. Viruses 2021; 13:v13122394. [PMID: 34960663 PMCID: PMC8708721 DOI: 10.3390/v13122394] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/12/2021] [Accepted: 11/27/2021] [Indexed: 12/14/2022] Open
Abstract
Marburg virus (MARV), the causative agent of Marburg virus disease, emerges sporadically in sub-Saharan Africa and is often fatal in humas. The natural reservoir for this zoonotic virus is the frugivorous Egyptian rousette bat (Rousettus aegyptiacus) that when infected, sheds virus in the highest amounts in oral secretions and urine. Being fruit bats, these animals forage nightly for ripened fruit throughout the year, including those types often preferred by humans. During feeding, they continually discard partially eaten fruit on the ground that could then be consumed by other Marburg virus susceptible animals or humans. In this study, using qRT-PCR and virus isolation, we tested fruit discarded by Egyptian rousette bats experimentally infected with a natural bat isolate of Marburg virus. We then separately tested viral persistence on fruit varieties commonly cultivated in sub-Saharan Africa using a recombinant Marburg virus expressing the fluorescent ZsGreen1. Marburg virus RNA was repeatedly detected on fruit in the food bowls of the infected bats and viable MARV was recovered from inoculated fruit for up to 6 h.
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23
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Sami SA, Marma KKS, Mahmud S, Khan MAN, Albogami S, El-Shehawi AM, Rakib A, Chakraborty A, Mohiuddin M, Dhama K, Uddin MMN, Hossain MK, Tallei TE, Emran TB. Designing of a Multi-epitope Vaccine against the Structural Proteins of Marburg Virus Exploiting the Immunoinformatics Approach. ACS OMEGA 2021; 6:32043-32071. [PMID: 34870027 PMCID: PMC8638006 DOI: 10.1021/acsomega.1c04817] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 11/10/2021] [Indexed: 05/08/2023]
Abstract
Marburg virus disease (MVD) caused by the Marburg virus (MARV) generally appears with flu-like symptoms and leads to severe hemorrhagic fever. It spreads via direct contact with infected individuals or animals. Despite being considered to be less threatening in terms of appearances and the number of infected patients, the high fatality rate of this pathogenic virus is a major concern. Until now, no vaccine has been developed to combat this deadly virus. Therefore, vaccination for this virus is necessary to reduce its mortality. Our current investigation focuses on the design and formulation of a multi-epitope vaccine based on the structural proteins of MARV employing immunoinformatics approaches. The screening of potential T-cell and B-cell epitopes from the seven structural proteins of MARV was carried out through specific selection parameters. Afterward, we compiled the shortlisted epitopes by attaching them to an appropriate adjuvant and linkers. Population coverage analysis, conservancy analysis, and MHC cluster analysis of the shortlisted epitopes were satisfactory. Importantly, physicochemical characteristics, human homology assessment, and structure validation of the vaccine construct delineated convenient outcomes. We implemented disulfide bond engineering to stabilize the tertiary or quaternary interactions. Furthermore, stability and physical movements of the vaccine protein were explored using normal-mode analysis. The immune simulation study of the vaccine complexes also exhibited significant results. Additionally, the protein-protein docking and molecular dynamics simulation of the final construct exhibited a higher affinity toward toll-like receptor-4 (TLR4). From simulation trajectories, multiple descriptors, namely, root mean square deviations (rmsd), radius of gyration (Rg), root mean square fluctuations (RMSF), solvent-accessible surface area (SASA), and hydrogen bonds, have been taken into account to demonstrate the inflexible and rigid nature of receptor molecules and the constructed vaccine. Inclusively, our findings suggested the vaccine constructs' ability to regulate promising immune responses against MARV pathogenesis.
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Affiliation(s)
- Saad Ahmed Sami
- Department of Pharmacy,
Faculty of Biological Sciences, University
of Chittagong, Chittagong 4331, Bangladesh
| | - Kay Kay Shain Marma
- Department of Pharmacy,
Faculty of Biological Sciences, University
of Chittagong, Chittagong 4331, Bangladesh
| | - Shafi Mahmud
- Microbiology
Laboratory, Bioinformatics Division, Department of Genetic Engineering
and Biotechnology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Md. Asif Nadim Khan
- Department of Biochemistry and Molecular
Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong 4331, Bangladesh
| | - Sarah Albogami
- Department
of Biotechnology, College of Science, Taif
University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Ahmed M. El-Shehawi
- Department
of Biotechnology, College of Science, Taif
University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Ahmed Rakib
- Department of Pharmacy,
Faculty of Biological Sciences, University
of Chittagong, Chittagong 4331, Bangladesh
| | - Agnila Chakraborty
- Department of Pharmacy,
Faculty of Biological Sciences, University
of Chittagong, Chittagong 4331, Bangladesh
| | - Mostafah Mohiuddin
- Department of Pharmacy,
Faculty of Biological Sciences, University
of Chittagong, Chittagong 4331, Bangladesh
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary
Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - Mir Muhammad Nasir Uddin
- Department of Pharmacy,
Faculty of Biological Sciences, University
of Chittagong, Chittagong 4331, Bangladesh
| | - Mohammed Kamrul Hossain
- Department of Pharmacy,
Faculty of Biological Sciences, University
of Chittagong, Chittagong 4331, Bangladesh
| | - Trina Ekawati Tallei
- Department of Biology,
Faculty of Mathematics and Natural Sciences, Sam Ratulangi University, Manado, North Sulawesi 95115, Indonesia
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh
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24
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Semeere A, Byakwaga H, Laker-Oketta M, Freeman E, Busakhala N, Wenger M, Kasozi C, Ssemakadde M, Bwana M, Kanyesigye M, Kadama-Makanga P, Rotich E, Kisuya J, Sang E, Maurer T, Wools-Kaloustian K, Kambugu A, Martin J. Feasibility of Rapid Case Ascertainment for Cancer in East Africa: An Investigation of Community-Representative Kaposi Sarcoma in the Era of Antiretroviral Therapy. Cancer Epidemiol 2021; 74:101997. [PMID: 34385076 PMCID: PMC8480528 DOI: 10.1016/j.canep.2021.101997] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 07/12/2021] [Accepted: 07/17/2021] [Indexed: 12/09/2022]
Abstract
BACKGROUND Rapid case ascertainment (RCA) refers to the expeditious and detailed examination of patients with a potentially rapidly fatal disease shortly after diagnosis. RCA is frequently performed in resource-rich settings to facilitate cancer research. Despite its utility, RCA is rarely implemented in resource-limited settings and has not been performed for malignancies. One cancer and context that would benefit from RCA in a resource-limited setting is HIV-related Kaposi sarcoma (KS) in sub-Saharan Africa. METHODS To determine the feasibility of RCA for KS, we searched for all potential newly diagnosed KS among HIV-infected adults attending three community-based facilities in Uganda and Kenya. Searching involved querying of electronic medical records, pathology record review, and notification by clinicians. Upon identification, a team verified eligibility and attempted to locate patients to perform RCA, which included epidemiologic, clinical and laboratory measurements. RESULTS We identified 593 patients with suspected new KS. Of the 593, 171 were ineligible, mainly because biopsy failed to confirm KS (65%) or KS was not new (30%). Among the 422 remaining, RCA was performed within 1 month for 56% of patients and within 3 months for 65% (95% confidence interval: 59 to 70%). Reasons for not performing RCA included intervening death (47%), inability to contact (44%), refusal/unsuitable to consent (8.3%), and patient re-location (0.7%). CONCLUSIONS We found that RCA - an important tool for cancer research in resource-rich settings - is feasible for the investigation of community-representative KS in East Africa. Feasibility of RCA for KS suggests feasibility for other cancers in Africa.
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Affiliation(s)
- Aggrey Semeere
- Infectious Diseases Institute, Makerere University College of Health Sciences, Kampala, Uganda.
| | - Helen Byakwaga
- Infectious Diseases Institute, Makerere University College of Health Sciences, Kampala, Uganda
| | - Miriam Laker-Oketta
- Infectious Diseases Institute, Makerere University College of Health Sciences, Kampala, Uganda
| | | | - Naftali Busakhala
- Moi University, Eldoret, Kenya; Academic Model Providing Access to Healthcare (AMPATH), Eldoret, Kenya
| | - Megan Wenger
- University of California, San Francisco, CA, United States
| | | | | | | | | | - Philippa Kadama-Makanga
- Infectious Diseases Institute, Makerere University College of Health Sciences, Kampala, Uganda
| | - Elyne Rotich
- Academic Model Providing Access to Healthcare (AMPATH), Eldoret, Kenya
| | - Job Kisuya
- Academic Model Providing Access to Healthcare (AMPATH), Eldoret, Kenya
| | - Edwin Sang
- Academic Model Providing Access to Healthcare (AMPATH), Eldoret, Kenya
| | - Toby Maurer
- Indiana University, Indianapolis, IN, United States
| | | | - Andrew Kambugu
- Infectious Diseases Institute, Makerere University College of Health Sciences, Kampala, Uganda
| | - Jeffrey Martin
- University of California, San Francisco, CA, United States
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25
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Siya A, Mafigiri R, Migisha R, Kading RC. Uganda Mountain Community Health System-Perspectives and Capacities towards Emerging Infectious Disease Surveillance. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:8562. [PMID: 34444315 PMCID: PMC8394296 DOI: 10.3390/ijerph18168562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/05/2021] [Accepted: 08/11/2021] [Indexed: 11/22/2022]
Abstract
In mountain communities like Sebei, Uganda, which are highly vulnerable to emerging and re-emerging infectious diseases, community-based surveillance plays an important role in the monitoring of public health hazards. In this survey, we explored capacities of village health teams (VHTs) in Sebei communities of Mount Elgon in undertaking surveillance tasks for emerging and re-emerging infectious diseases in the context of a changing climate. We used participatory epidemiology techniques to elucidate VHTs' perceptions on climate change and public health and assessed their capacities to conduct surveillance for emerging and re-emerging infectious diseases. Overall, VHTs perceived climate change to be occurring with wider impacts on public health. However, they had inadequate capacities in collecting surveillance data. The VHTs lacked transport to navigate through their communities and had insufficient capacities in using mobile phones for sending alerts. They did not engage in reporting other hazards related to the environment, wildlife, and domestic livestock that would accelerate infectious disease outbreaks. Records were not maintained for disease surveillance activities and the abilities of VHTs to analyze data were also limited. However, VHTs had access to platforms that could enable them to disseminate public health information. The VHTs thus need to be retooled to conduct their work effectively and efficiently through equipping them with adequate logistics and knowledge on collecting, storing, analyzing, and relaying data, which will improve infectious disease response and mitigation efforts.
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Affiliation(s)
- Aggrey Siya
- Department of Environmental Management, Makerere University, Kampala P.O. Box 7062, Uganda
- EcoHealth180, Kween District, Kapchorwa P.O. Box 250, Uganda
| | - Richardson Mafigiri
- Global Health Department, Infectious Diseases Institute, Makerere University, Kampala P.O. Box 22418, Uganda;
| | - Richard Migisha
- Department of Physiology, Mbarara University of Science and Technology, Mbarara P.O. Box 1410, Uganda;
| | - Rebekah C. Kading
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, CO 80523, USA;
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26
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Rugarabamu S, Mwanyika GO, Rumisha SF, Sindato C, Lim HY, Misinzo G, Mboera LEG. Seroprevalence and associated risk factors of selected zoonotic viral hemorrhagic fevers in Tanzania. Int J Infect Dis 2021; 109:174-181. [PMID: 34242761 DOI: 10.1016/j.ijid.2021.07.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 07/01/2021] [Accepted: 07/03/2021] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE To determine the seroprevalence of selected zoonotic viral hemorrhagic fevers (VHFs) and their associated risk factors in Tanzania. METHODS Blood samples were collected from consenting outpatients and community members in eight districts selected from five ecological zones of Tanzania. Serum was harvested and tested for the presence of immunoglobulin G (IgG) and M (IgM) antibodies against Crimean-Congo hemorrhagic fever (CCHF), Ebola virus disease (EVD), Marburg virus disease (MVD), Rift Valley fever (RVF), and yellow fever (YF). RESULTS The presence of IgM and IgG antibodies against CCHF, EVD, MVD, RVF, and YF was detected in 64 of 500 samples (12.8%). The prevalences of IgM and IgG antibodies to CCHF, EVD, MVD, RFV, and YF were 2.0%, 3.4%, 1.2%, 4.8%, and 1.4%, respectively. Contact with wild animals (OR = 1.2, CI = 1.3-1.6) and keeping goats (OR = 1.3, CI = 1.5-1.9) were significantly associated with RVF, while contact with bats (OR = 1.2, CI = 1.1-1.5) was associated with MVD. CONCLUSION The findings of this study provide evidence of exposure to CCHF, EVD, MVD, RVF, and YF in Tanzania. Since most of these VHFs occurred without apparent clinical forms of the disease, these findings call for the need to strengthen the surveillance system and management of febrile illnesses in Tanzania.
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Affiliation(s)
- Sima Rugarabamu
- SACIDS Foundation for One Health, Sokoine University of Agriculture, Morogoro, Tanzania; Department of Veterinary Microbiology, Parasitology and Biotechnology, Sokoine University of Agriculture, Morogoro, Tanzania; Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.
| | - Gaspary O Mwanyika
- SACIDS Foundation for One Health, Sokoine University of Agriculture, Morogoro, Tanzania; Department of Veterinary Microbiology, Parasitology and Biotechnology, Sokoine University of Agriculture, Morogoro, Tanzania; Mbeya University of Science and Technology, Mbeya, Tanzania.
| | - Susan F Rumisha
- National Institute for Medical Research, Headquarters, Dar es Salaam, Tanzania; Malaria Atlas Project, Geospatial Health and Development, Telethon Kids Institute, Perth, Western Australia.
| | - Calvin Sindato
- SACIDS Foundation for One Health, Sokoine University of Agriculture, Morogoro, Tanzania; National Institute for Medical Research, Tabora Research Centre, Tabora, Tanzania.
| | - Hee-Young Lim
- Korea Disease Control and Prevention Agency, National Institute of Health, Osong, Chungchungbukdo, Republic of Korea.
| | - Gerald Misinzo
- SACIDS Foundation for One Health, Sokoine University of Agriculture, Morogoro, Tanzania; Department of Veterinary Microbiology, Parasitology and Biotechnology, Sokoine University of Agriculture, Morogoro, Tanzania.
| | - Leonard E G Mboera
- SACIDS Foundation for One Health, Sokoine University of Agriculture, Morogoro, Tanzania.
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27
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Faire face à l’apparition de maladies virales infectieuses, un défi contemporain. ACTUALITES PHARMACEUTIQUES 2021. [DOI: 10.1016/j.actpha.2021.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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28
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Angiomotin Counteracts the Negative Regulatory Effect of Host WWOX on Viral PPxY-Mediated Egress. J Virol 2021; 95:JVI.00121-21. [PMID: 33536174 PMCID: PMC8103691 DOI: 10.1128/jvi.00121-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Filoviridae family members Ebola (EBOV) and Marburg (MARV) viruses and Arenaviridae family member Lassa virus (LASV) are emerging pathogens that can cause hemorrhagic fever and high rates of mortality in humans. A better understanding of the interplay between these viruses and the host will inform about the biology of these pathogens, and may lead to the identification of new targets for therapeutic development. Notably, expression of the filovirus VP40 and LASV Z matrix proteins alone drives assembly and egress of virus-like particles (VLPs). The conserved PPxY Late (L) domain motifs in the filovirus VP40 and LASV Z proteins play a key role in the budding process by mediating interactions with select host WW-domain containing proteins that then regulate virus egress and spread. To identify the full complement of host WW-domain interactors, we utilized WT and PPxY mutant peptides from EBOV and MARV VP40 and LASV Z proteins to screen an array of GST-WW-domain fusion proteins. We identified WW domain-containing oxidoreductase (WWOX) as a novel PPxY-dependent interactor, and we went on to show that full-length WWOX physically interacts with eVP40, mVP40 and LASV Z to negatively regulate egress of VLPs and of a live VSV/Ebola recombinant virus (M40). Interestingly, WWOX is a versatile host protein that regulates multiple signaling pathways and cellular processes via modular interactions between its WW-domains and PPxY motifs of select interacting partners, including host angiomotin (AMOT). Notably, we demonstrated recently that expression of endogenous AMOT not only positively regulates egress of VLPs, but also promotes egress and spread of live EBOV and MARV. Toward the mechanism of action, we show that the competitive and modular interplay among WWOX-AMOT-VP40/Z regulates VLP and M40 virus egress. Thus, WWOX is the newest member of an emerging group of host WW-domain interactors (e.g. BAG3; YAP/TAZ) that negatively regulate viral egress. These findings further highlight the complex interplay of virus-host PPxY/WW-domain interactions and their potential impact on the biology of both the virus and the host during infection.Author Summary Filoviruses (Ebola [EBOV] and Marburg [MARV]) and arenavirus (Lassa virus; LASV) are zoonotic, emerging pathogens that cause outbreaks of severe hemorrhagic fever in humans. A fundamental understanding of the virus-host interface is critical for understanding the biology of these viruses and for developing future strategies for therapeutic intervention. Here, we identified host WW-domain containing protein WWOX as a novel interactor with VP40 and Z, and showed that WWOX inhibited budding of VP40/Z virus-like particles (VLPs) and live virus in a PPxY/WW-domain dependent manner. Our findings are important to the field as they expand the repertoire of host interactors found to regulate PPxY-mediated budding of RNA viruses, and further highlight the competitive interplay and modular virus-host interactions that impact both the virus lifecycle and the host cell.
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Pervin T, Oany AR. Vaccinomics approach for scheming potential epitope-based peptide vaccine by targeting l-protein of Marburg virus. In Silico Pharmacol 2021; 9:21. [PMID: 33717824 PMCID: PMC7936589 DOI: 10.1007/s40203-021-00080-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 02/02/2021] [Indexed: 12/31/2022] Open
Abstract
Marburg virus is one of the world’s most threatening diseases, causing extreme hemorrhagic fever, with a death rate of up to 90%. The Food and Drug Administration (FDA) currently not authorized any treatments or vaccinations for the hindrance and post-exposure of the Marburg virus. In the present study, the vaccinomics methodology was adopted to design a potential novel peptide vaccine against the Marburg virus, targeting RNA-directed RNA polymerase (l). A total of 48 l-proteins from diverse variants of the Marburg virus were collected from the NCBI GenBank server and used to classify the best antigenic protein leading to predict equally T and B-cell epitopes. Initially, the top 26 epitopes were evaluated for the attraction with major histocompatibility complex (MHC) class I and II alleles. Finally, four prospective central epitopes NLSDLTFLI, FRYEFTRHF, YRLRNSTAL, and YRVRNVQTL were carefully chosen. Among these, FRYEFTRHF and YRVRNVQTL peptides showed 100% conservancy. Though YRLRNSTAL showed 95.74% conservancy, it demonstrated the highest combined score as T cell epitope (2.5461) and population coverage of 94.42% among the whole world population. The epitope was found non-allergenic, and docking interactions with human leukocyte antigens (HLAs) also verified. Finally, in vivo analysis of the recommended peptides might contribute to the advancement of an efficient and exclusively prevalent vaccine that would be an active route to impede the virus spreading.
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Affiliation(s)
- Tahmina Pervin
- Biotechnology and Genetic Engineering Discipline, Life Science School, Khulna University, Khulna, 9208 Bangladesh
| | - Arafat Rahman Oany
- Department of Biotechnology and Genetic Engineering, Faculty of Life Science, Mawlana Bhashani Science and Technology University, Tangail, 1902 Bangladesh.,Aristopharma Limited, Dhaka, Bangladesh
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30
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Porter DP, Weidner JM, Gomba L, Bannister R, Blair C, Jordan R, Wells J, Wetzel K, Garza N, Van Tongeren S, Donnelly G, Steffens J, Moreau A, Bearss J, Lee E, Bavari S, Cihlar T, Warren TK. Remdesivir (GS-5734) Is Efficacious in Cynomolgus Macaques Infected With Marburg Virus. J Infect Dis 2020; 222:1894-1901. [PMID: 32479636 DOI: 10.1093/infdis/jiaa290] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/26/2020] [Indexed: 12/25/2022] Open
Abstract
Marburg virus (MARV) is a filovirus with documented human case-fatality rates of up to 90%. Here, we evaluated the therapeutic efficacy of remdesivir (GS-5734) in nonhuman primates experimentally infected with MARV. Beginning 4 or 5 days post inoculation, cynomolgus macaques were treated once daily for 12 days with vehicle, 5 mg/kg remdesivir, or a 10-mg/kg loading dose followed by 5 mg/kg remdesivir. All vehicle-control animals died, whereas 83% of animals receiving a 10-mg/kg loading dose of remdesivir survived, as did 50% of animals receiving a 5-mg/kg remdesivir regimen. Remdesivir-treated animals exhibited improved clinical scores, lower plasma viral RNA, and improved markers of kidney function, liver function, and coagulopathy versus vehicle-control animals. The small molecule remdesivir showed therapeutic efficacy in this Marburg virus disease model with treatment initiation 5 days post inoculation, supporting further assessment of remdesivir for the treatment of Marburg virus disease in humans.
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Affiliation(s)
| | - Jessica M Weidner
- Geneva Foundation, Tacoma, Washington, USA.,United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Laura Gomba
- Geneva Foundation, Tacoma, Washington, USA.,United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | | | | | | | - Jay Wells
- Geneva Foundation, Tacoma, Washington, USA.,United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Kelly Wetzel
- Geneva Foundation, Tacoma, Washington, USA.,United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Nicole Garza
- Geneva Foundation, Tacoma, Washington, USA.,United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Sean Van Tongeren
- Geneva Foundation, Tacoma, Washington, USA.,United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Ginger Donnelly
- Geneva Foundation, Tacoma, Washington, USA.,United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Jesse Steffens
- Geneva Foundation, Tacoma, Washington, USA.,United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Alicia Moreau
- United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Jeremy Bearss
- United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Eric Lee
- United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Sina Bavari
- United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
| | - Tomas Cihlar
- Gilead Sciences Inc., Foster City, California, USA
| | - Travis K Warren
- Geneva Foundation, Tacoma, Washington, USA.,United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA
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31
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Amman BR, Bird BH, Bakarr IA, Bangura J, Schuh AJ, Johnny J, Sealy TK, Conteh I, Koroma AH, Foday I, Amara E, Bangura AA, Gbakima AA, Tremeau-Bravard A, Belaganahalli M, Dhanota J, Chow A, Ontiveros V, Gibson A, Turay J, Patel K, Graziano J, Bangura C, Kamanda ES, Osborne A, Saidu E, Musa J, Bangura D, Williams SMT, Wadsworth R, Turay M, Edwin L, Mereweather-Thompson V, Kargbo D, Bairoh FV, Kanu M, Robert W, Lungai V, Guetiya Wadoum RE, Coomber M, Kanu O, Jambai A, Kamara SM, Taboy CH, Singh T, Mazet JAK, Nichol ST, Goldstein T, Towner JS, Lebbie A. Isolation of Angola-like Marburg virus from Egyptian rousette bats from West Africa. Nat Commun 2020; 11:510. [PMID: 31980636 PMCID: PMC6981187 DOI: 10.1038/s41467-020-14327-8] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 12/19/2019] [Indexed: 11/22/2022] Open
Abstract
Marburg virus (MARV) causes sporadic outbreaks of severe Marburg virus disease (MVD). Most MVD outbreaks originated in East Africa and field studies in East Africa, South Africa, Zambia, and Gabon identified the Egyptian rousette bat (ERB; Rousettus aegyptiacus) as a natural reservoir. However, the largest recorded MVD outbreak with the highest case-fatality ratio happened in 2005 in Angola, where direct spillover from bats was not shown. Here, collaborative studies by the Centers for Disease Control and Prevention, Njala University, University of California, Davis USAID-PREDICT, and the University of Makeni identify MARV circulating in ERBs in Sierra Leone. PCR, antibody and virus isolation data from 1755 bats of 42 species shows active MARV infection in approximately 2.5% of ERBs. Phylogenetic analysis identifies MARVs that are similar to the Angola strain. These results provide evidence of MARV circulation in West Africa and demonstrate the value of pathogen surveillance to identify previously undetected threats.
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Affiliation(s)
- Brian R Amman
- Viral Special Pathogens Branch, Centers for Disease Control and Prevention, 1600 Clifton Rd. NE, Atlanta, GA, 30329, USA
| | - Brian H Bird
- One Health Institute, School of Veterinary Medicine, University of California, 1089 Veterinary Medicine Drive VetMed 3B, Ground Floor West, Davis, CA, 95616, USA
| | - Ibrahim A Bakarr
- Department of Biological Sciences, Njala University, Njala, Sierra Leone
| | - James Bangura
- One Health Institute, School of Veterinary Medicine, University of California, 1089 Veterinary Medicine Drive VetMed 3B, Ground Floor West, Davis, CA, 95616, USA
- University of Makeni, Makeni, Sierra Leone
| | - Amy J Schuh
- Viral Special Pathogens Branch, Centers for Disease Control and Prevention, 1600 Clifton Rd. NE, Atlanta, GA, 30329, USA
| | - Jonathan Johnny
- Department of Biological Sciences, Njala University, Njala, Sierra Leone
| | - Tara K Sealy
- Viral Special Pathogens Branch, Centers for Disease Control and Prevention, 1600 Clifton Rd. NE, Atlanta, GA, 30329, USA
| | - Immah Conteh
- Department of Biological Sciences, Njala University, Njala, Sierra Leone
| | - Alusine H Koroma
- Department of Biological Sciences, Njala University, Njala, Sierra Leone
| | - Ibrahim Foday
- Department of Biological Sciences, Njala University, Njala, Sierra Leone
| | | | | | - Aiah A Gbakima
- Ministry of Technical and Higher Education, New England Ville, Freetown, Sierra Leone
| | | | | | - Jasjeet Dhanota
- One Health Institute, School of Veterinary Medicine, University of California, 1089 Veterinary Medicine Drive VetMed 3B, Ground Floor West, Davis, CA, 95616, USA
| | - Andrew Chow
- One Health Institute, School of Veterinary Medicine, University of California, 1089 Veterinary Medicine Drive VetMed 3B, Ground Floor West, Davis, CA, 95616, USA
| | - Victoria Ontiveros
- One Health Institute, School of Veterinary Medicine, University of California, 1089 Veterinary Medicine Drive VetMed 3B, Ground Floor West, Davis, CA, 95616, USA
| | - Alexandra Gibson
- One Health Institute, School of Veterinary Medicine, University of California, 1089 Veterinary Medicine Drive VetMed 3B, Ground Floor West, Davis, CA, 95616, USA
| | | | - Ketan Patel
- Viral Special Pathogens Branch, Centers for Disease Control and Prevention, 1600 Clifton Rd. NE, Atlanta, GA, 30329, USA
| | - James Graziano
- Viral Special Pathogens Branch, Centers for Disease Control and Prevention, 1600 Clifton Rd. NE, Atlanta, GA, 30329, USA
| | - Camilla Bangura
- Department of Biological Sciences, Njala University, Njala, Sierra Leone
| | - Emmanuel S Kamanda
- Department of Biological Sciences, Njala University, Njala, Sierra Leone
| | - Augustus Osborne
- Department of Biological Sciences, Njala University, Njala, Sierra Leone
| | - Emmanuel Saidu
- Department of Biological Sciences, Njala University, Njala, Sierra Leone
| | - Jonathan Musa
- Department of Biological Sciences, Njala University, Njala, Sierra Leone
| | - Doris Bangura
- Department of Biological Sciences, Njala University, Njala, Sierra Leone
| | | | - Richard Wadsworth
- Department of Biological Sciences, Njala University, Njala, Sierra Leone
| | | | | | | | | | | | | | | | | | | | | | - Osman Kanu
- University of Makeni, Makeni, Sierra Leone
| | - Amara Jambai
- Ministry of Health and Sanitation, Brookfields, Freetown, Sierra Leone
| | - Sorie M Kamara
- Ministry of Agriculture and Forestry, Brookfields, Freetown, Sierra Leone
| | - Celine H Taboy
- Viral Special Pathogens Branch, Centers for Disease Control and Prevention, 1600 Clifton Rd. NE, Atlanta, GA, 30329, USA
| | - Tushar Singh
- Center for Global Health, Centers for Disease Control and Prevention, Freetown, Sierra Leone
| | - Jonna A K Mazet
- One Health Institute, School of Veterinary Medicine, University of California, 1089 Veterinary Medicine Drive VetMed 3B, Ground Floor West, Davis, CA, 95616, USA
| | - Stuart T Nichol
- Viral Special Pathogens Branch, Centers for Disease Control and Prevention, 1600 Clifton Rd. NE, Atlanta, GA, 30329, USA
| | - Tracey Goldstein
- One Health Institute, School of Veterinary Medicine, University of California, 1089 Veterinary Medicine Drive VetMed 3B, Ground Floor West, Davis, CA, 95616, USA.
| | - Jonathan S Towner
- Viral Special Pathogens Branch, Centers for Disease Control and Prevention, 1600 Clifton Rd. NE, Atlanta, GA, 30329, USA.
| | - Aiah Lebbie
- Department of Biological Sciences, Njala University, Njala, Sierra Leone.
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Talisuna AO, Okiro EA, Yahaya AA, Stephen M, Bonkoungou B, Musa EO, Minkoulou EM, Okeibunor J, Impouma B, Djingarey HM, Yao NKM, Oka S, Yoti Z, Fall IS. Spatial and temporal distribution of infectious disease epidemics, disasters and other potential public health emergencies in the World Health Organisation Africa region, 2016-2018. Global Health 2020; 16:9. [PMID: 31941554 DOI: 10.1186/s12992-019-050-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 12/30/2019] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND Emerging and re-emerging diseases with pandemic potential continue to challenge fragile health systems in Africa, creating enormous human and economic toll. To provide evidence for the investment case for public health emergency preparedness, we analysed the spatial and temporal distribution of epidemics, disasters and other potential public health emergencies in the WHO African region between 2016 and 2018. METHODS We abstracted data from several sources, including: the WHO African Region's weekly bulletins on epidemics and emergencies, the WHO-Disease Outbreak News (DON) and the Emergency Events Database (EM-DAT) of the Centre for Research on the Epidemiology of Disasters (CRED). Other sources were: the Program for Monitoring Emerging Diseases (ProMED) and the Global Infectious Disease and Epidemiology Network (GIDEON). We included information on the time and location of the event, the number of cases and deaths and counter-checked the different data sources. DATA ANALYSIS We used bubble plots for temporal analysis and generated graphs and maps showing the frequency and distribution of each event. Based on the frequency of events, we categorised countries into three: Tier 1, 10 or more events, Tier 2, 5-9 events, and Tier 3, less than 5 or no event. Finally, we compared the event frequencies to a summary International Health Regulations (IHR) index generated from the IHR technical area scores of the 2018 annual reports. RESULTS Over 260 events were identified between 2016 and 2018. Forty-one countries (87%) had at least one epidemic between 2016 and 2018, and 21 of them (45%) had at least one epidemic annually. Twenty-two countries (47%) had disasters/humanitarian crises. Seven countries (the epicentres) experienced over 10 events and all of them had limited or developing IHR capacities. The top five causes of epidemics were: Cholera, Measles, Viral Haemorrhagic Diseases, Malaria and Meningitis. CONCLUSIONS The frequent and widespread occurrence of epidemics and disasters in Africa is a clarion call for investing in preparedness. While strengthening preparedness should be guided by global frameworks, it is the responsibility of each government to finance country specific needs. We call upon all African countries to establish governance and predictable financing mechanisms for IHR implementation and to build resilient health systems everywhere.
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Affiliation(s)
- Ambrose Otau Talisuna
- World Health Organization, Regional Office for Africa, Health Emergencies programme, Brazzaville, Congo.
| | - Emelda Aluoch Okiro
- Population Health Unit, Kenya Medical Research Institute - Wellcome Trust Research Programme, P.O. Box 43640-00100, Nairobi, Kenya
| | - Ali Ahmed Yahaya
- World Health Organization, Regional Office for Africa, Health Emergencies programme, Brazzaville, Congo
| | - Mary Stephen
- World Health Organization, Regional Office for Africa, Health Emergencies programme, Brazzaville, Congo
| | - Boukare Bonkoungou
- World Health Organization, Regional Office for Africa, Health Emergencies programme, Brazzaville, Congo
| | - Emmanuel Onuche Musa
- World Health Organization, Regional Office for Africa, Health Emergencies programme, Brazzaville, Congo
| | | | - Joseph Okeibunor
- World Health Organization, Regional Office for Africa, Health Emergencies programme, Brazzaville, Congo
| | - Benido Impouma
- World Health Organization, Regional Office for Africa, Health Emergencies programme, Brazzaville, Congo
| | - Haruna Mamoudou Djingarey
- World Health Organization, Regional Office for Africa, Health Emergencies programme, Brazzaville, Congo
| | - N'da Konan Michel Yao
- World Health Organization, Regional Office for Africa, Health Emergencies programme, Brazzaville, Congo
| | - Sakuya Oka
- World Health Organization, Regional Office for Africa, Health Emergencies programme, Brazzaville, Congo
| | - Zabulon Yoti
- World Health Organization, Regional Office for Africa, Health Emergencies programme, Brazzaville, Congo
| | - Ibrahima Socé Fall
- World Health Organization, Emergency Response Department, Health Emergencies programme, Geneva, Switzerland
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33
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Spatial and temporal distribution of infectious disease epidemics, disasters and other potential public health emergencies in the World Health Organisation Africa region, 2016-2018. Global Health 2020; 16:9. [PMID: 31941554 PMCID: PMC6964091 DOI: 10.1186/s12992-019-0540-4] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 12/30/2019] [Indexed: 11/17/2022] Open
Abstract
Background Emerging and re-emerging diseases with pandemic potential continue to challenge fragile health systems in Africa, creating enormous human and economic toll. To provide evidence for the investment case for public health emergency preparedness, we analysed the spatial and temporal distribution of epidemics, disasters and other potential public health emergencies in the WHO African region between 2016 and 2018. Methods We abstracted data from several sources, including: the WHO African Region’s weekly bulletins on epidemics and emergencies, the WHO-Disease Outbreak News (DON) and the Emergency Events Database (EM-DAT) of the Centre for Research on the Epidemiology of Disasters (CRED). Other sources were: the Program for Monitoring Emerging Diseases (ProMED) and the Global Infectious Disease and Epidemiology Network (GIDEON). We included information on the time and location of the event, the number of cases and deaths and counter-checked the different data sources. Data analysis We used bubble plots for temporal analysis and generated graphs and maps showing the frequency and distribution of each event. Based on the frequency of events, we categorised countries into three: Tier 1, 10 or more events, Tier 2, 5–9 events, and Tier 3, less than 5 or no event. Finally, we compared the event frequencies to a summary International Health Regulations (IHR) index generated from the IHR technical area scores of the 2018 annual reports. Results Over 260 events were identified between 2016 and 2018. Forty-one countries (87%) had at least one epidemic between 2016 and 2018, and 21 of them (45%) had at least one epidemic annually. Twenty-two countries (47%) had disasters/humanitarian crises. Seven countries (the epicentres) experienced over 10 events and all of them had limited or developing IHR capacities. The top five causes of epidemics were: Cholera, Measles, Viral Haemorrhagic Diseases, Malaria and Meningitis. Conclusions The frequent and widespread occurrence of epidemics and disasters in Africa is a clarion call for investing in preparedness. While strengthening preparedness should be guided by global frameworks, it is the responsibility of each government to finance country specific needs. We call upon all African countries to establish governance and predictable financing mechanisms for IHR implementation and to build resilient health systems everywhere.
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Languon S, Quaye O. Filovirus Disease Outbreaks: A Chronological Overview. Virology (Auckl) 2019; 10:1178122X19849927. [PMID: 31258326 PMCID: PMC6589952 DOI: 10.1177/1178122x19849927] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 04/18/2019] [Indexed: 12/04/2022] Open
Abstract
Filoviruses cause outbreaks which lead to high fatality in humans and non-human primates, thus tagging them as major threats to public health and species conservation. In this review, we give account of index cases responsible for filovirus disease outbreaks that have occurred over the past 52 years in a chronological fashion, by describing the circumstances that led to the outbreaks, and how each of the outbreaks broke out. Since the discovery of Marburg virus and Ebola virus in 1967 and 1976, respectively, more than 40 filovirus disease outbreaks have been reported; majority of which have occurred in Africa. The chronological presentation of this review is to provide a concise overview of filovirus disease outbreaks since the discovery of the viruses, and highlight the patterns in the occurrence of the outbreaks. This review will help researchers to better appreciate the need for surveillance, especially in areas where there have been no filovirus disease outbreaks. We conclude by summarizing some recommendations that have been proposed by health and policy decision makers over the years.
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Affiliation(s)
- Sylvester Languon
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), Department of Biochemistry, Cell and Molecular Biology, University of Ghana, Accra, Ghana
| | - Osbourne Quaye
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), Department of Biochemistry, Cell and Molecular Biology, University of Ghana, Accra, Ghana
- Stellenbosch Institute for Advance Study (STIAS), Stellenbosch, South Africa
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Periplasmic Nanobody-APEX2 Fusions Enable Facile Visualization of Ebola, Marburg, and Mĕnglà virus Nucleoproteins, Alluding to Similar Antigenic Landscapes among Marburgvirus and Dianlovirus. Viruses 2019; 11:v11040364. [PMID: 31010013 PMCID: PMC6521291 DOI: 10.3390/v11040364] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 04/17/2019] [Accepted: 04/18/2019] [Indexed: 11/26/2022] Open
Abstract
We explore evolved soybean ascorbate peroxidase (APEX2) as a reporter when fused to the C-termini of llama nanobodies (single-domain antibodies, sdAb; variable domains of heavy chain-only antibodies, VHH) targeted to the E. coli periplasm. Periplasmic expression preserves authentic antibody N-termini, intra-domain disulphide bond(s), and capitalizes on efficient haem loading through the porous E. coli outer membrane. Using monomeric and dimeric anti-nucleoprotein (NP) sdAb cross-reactive within the Marburgvirus genus and cross-reactive within the Ebolavirus genus, we show that periplasmic sdAb–APEX2 fusion proteins are easily purified at multi-mg amounts. The fusions were used in Western blotting, ELISA, and microscopy to visualize NPs using colorimetric and fluorescent imaging. Dimeric sdAb–APEX2 fusions were superior at binding NPs from viruses that were evolutionarily distant to that originally used to select the sdAb. Partial conservation of the anti-Marburgvirus sdAb epitope enabled the recognition of a novel NP encoded by the recently discovered Mĕnglà virus genome. Antibody–antigen interactions were rationalized using monovalent nanoluciferase titrations and contact mapping analysis of existing crystal structures, while molecular modelling was used to reveal the potential landscape of the Mĕnglà NP C-terminal domain. The sdAb–APEX2 fusions also enabled live Marburgvirus and Ebolavirus detection 24 h post-infection of Vero E6 cells within a BSL-4 laboratory setting. The simple and inexpensive mining of large amounts of periplasmic sdAb–APEX2 fusion proteins should help advance studies of past, contemporary, and perhaps Filovirus species yet to be discovered.
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