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Omatola CA, Mshelbwala PP, Okolo MLO, Onoja AB, Abraham JO, Adaji DM, Samson SO, Okeme TO, Aminu RF, Akor ME, Ayeni G, Muhammed D, Akoh PQ, Ibrahim DS, Edegbo E, Yusuf L, Ocean HO, Akpala SN, Musa OA, Adamu AM. Noroviruses: Evolutionary Dynamics, Epidemiology, Pathogenesis, and Vaccine Advances-A Comprehensive Review. Vaccines (Basel) 2024; 12:590. [PMID: 38932319 PMCID: PMC11209302 DOI: 10.3390/vaccines12060590] [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: 04/25/2024] [Revised: 05/20/2024] [Accepted: 05/22/2024] [Indexed: 06/28/2024] Open
Abstract
Noroviruses constitute a significant aetiology of sporadic and epidemic gastroenteritis in human hosts worldwide, especially among young children, the elderly, and immunocompromised patients. The low infectious dose of the virus, protracted shedding in faeces, and the ability to persist in the environment promote viral transmission in different socioeconomic settings. Considering the substantial disease burden across healthcare and community settings and the difficulty in controlling the disease, we review aspects related to current knowledge about norovirus biology, mechanisms driving the evolutionary trends, epidemiology and molecular diversity, pathogenic mechanism, and immunity to viral infection. Additionally, we discuss the reservoir hosts, intra-inter host dynamics, and potential eco-evolutionary significance. Finally, we review norovirus vaccines in the development pipeline and further discuss the various host and pathogen factors that may complicate vaccine development.
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Affiliation(s)
- Cornelius Arome Omatola
- Department of Microbiology, Kogi State University, Anyigba 272102, Kogi State, Nigeria; (C.A.O.)
| | | | | | - Anyebe Bernard Onoja
- Department of Virology, University College Hospital, Ibadan 211101, Oyo State, Nigeria
| | - Joseph Oyiguh Abraham
- Department of Microbiology, Kogi State University, Anyigba 272102, Kogi State, Nigeria; (C.A.O.)
| | - David Moses Adaji
- Department of Biotechnology Science and Engineering, University of Alabama, Huntsville, AL 35899, USA
| | - Sunday Ocholi Samson
- Department of Molecular Biology, Biotechnology, and Biochemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 29, 50-370 Wrocław, Poland
| | - Therisa Ojomideju Okeme
- Department of Biological Sciences, Federal University Lokoja, Lokoja 260101, Kogi State, Nigeria
| | - Ruth Foluke Aminu
- Department of Microbiology, Kogi State University, Anyigba 272102, Kogi State, Nigeria; (C.A.O.)
| | - Monday Eneojo Akor
- Department of Microbiology, Kogi State University, Anyigba 272102, Kogi State, Nigeria; (C.A.O.)
| | - Gideon Ayeni
- Department of Biochemistry, Kogi State University, Anyigba 272102, Kogi State, Nigeria
| | - Danjuma Muhammed
- Epidemiology and Public Health Unit, Department of Biology, Universiti Putra, Seri Kembangan 43300, Malaysia
| | - Phoebe Queen Akoh
- Department of Microbiology, Kogi State University, Anyigba 272102, Kogi State, Nigeria; (C.A.O.)
| | | | - Emmanuel Edegbo
- Department of Microbiology, Kogi State University, Anyigba 272102, Kogi State, Nigeria; (C.A.O.)
| | - Lamidi Yusuf
- Department of Microbiology, Kogi State University, Anyigba 272102, Kogi State, Nigeria; (C.A.O.)
| | | | - Sumaila Ndah Akpala
- Department of Microbiology, Kogi State University, Anyigba 272102, Kogi State, Nigeria; (C.A.O.)
- Department of Biotechnology, Federal University Lokoja, Lokoja 260101, Kogi State, Nigeria
| | - Oiza Aishat Musa
- Department of Microbiology, Kogi State University, Anyigba 272102, Kogi State, Nigeria; (C.A.O.)
| | - Andrew Musa Adamu
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville 4811, QLD, Australia
- College of Public Health Medical and Veterinary Sciences, James Cook University, Townsville 4811, QLD, Australia
- Centre for Tropical Biosecurity, James Cook University, Townsville 4811, QLD, Australia
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Soiza RL, Scicluna C, Bilal S. Virus Infections in Older People. Subcell Biochem 2023; 103:149-183. [PMID: 37120468 DOI: 10.1007/978-3-031-26576-1_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
Older people are more prone to viral infections, and often have worse outcomes. This was well demonstrated during the COVID-19 pandemic, where a disproportionate number of deaths occurred in the oldest and frailest people. The assessment of the older person with a viral infection is complicated by the high prevalence of multiple comorbidities and sensory or cognitive impairment. They often present with common geriatric syndromes such as falls or delirium, rather than the more typical features of a viral illness in younger people. Comprehensive geriatric assessment by a specialist multidisciplinary team is the gold standard of management, as viral illness is unlikely to present in isolation of other healthcare needs. We discuss the presentation, diagnosis, prevention, and management of common viral infections-respiratory syncytial virus, coronavirus, norovirus, influenza, hepatitis, herpes, and dengue viruses-with special consideration of infections in the older patient.
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Affiliation(s)
- Roy L Soiza
- Ageing Clinical and Experimental Research Group, University of Aberdeen, Aberdeen, UK.
| | - Chiara Scicluna
- Ageing Clinical and Experimental Research Group, University of Aberdeen, Aberdeen, UK
| | - Sana Bilal
- Ageing Clinical and Experimental Research Group, University of Aberdeen, Aberdeen, UK
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Zhao B, Hu L, Song Y, Patil K, Ramani S, Atmar RL, Estes MK, Prasad BVV. Norovirus Protease Structure and Antivirals Development. Viruses 2021; 13:v13102069. [PMID: 34696498 PMCID: PMC8537771 DOI: 10.3390/v13102069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/06/2021] [Accepted: 10/09/2021] [Indexed: 11/30/2022] Open
Abstract
Human norovirus (HuNoV) infection is a global health and economic burden. Currently, there are no licensed HuNoV vaccines or antiviral drugs available. The protease encoded by the HuNoV genome plays a critical role in virus replication by cleaving the polyprotein and is an excellent target for developing small-molecule inhibitors. The current strategy for developing HuNoV protease inhibitors is by targeting the enzyme’s active site and designing inhibitors that bind to the substrate-binding pockets located near the active site. However, subtle differential conformational flexibility in response to the different substrates in the polyprotein and structural differences in the active site and substrate-binding pockets across different genogroups, hamper the development of effective broad-spectrum inhibitors. A comparative analysis of the available HuNoV protease structures may provide valuable insight for identifying novel strategies for the design and development of such inhibitors. The goal of this review is to provide such analysis together with an overview of the current status of the design and development of HuNoV protease inhibitors.
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Affiliation(s)
- Boyang Zhao
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA; (B.Z.); (K.P.); (S.R.); (R.L.A.); (M.K.E.)
| | - Liya Hu
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA;
| | - Yongcheng Song
- Department of Pharmacology and Chemical Biology, Baylor College of Medicine, Houston, TX 77030, USA;
| | - Ketki Patil
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA; (B.Z.); (K.P.); (S.R.); (R.L.A.); (M.K.E.)
| | - Sasirekha Ramani
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA; (B.Z.); (K.P.); (S.R.); (R.L.A.); (M.K.E.)
| | - Robert L. Atmar
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA; (B.Z.); (K.P.); (S.R.); (R.L.A.); (M.K.E.)
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Mary K. Estes
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA; (B.Z.); (K.P.); (S.R.); (R.L.A.); (M.K.E.)
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - B. V. Venkataram Prasad
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA; (B.Z.); (K.P.); (S.R.); (R.L.A.); (M.K.E.)
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA;
- Correspondence: ; Tel.: +1-713-798-5686
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Jin M, Wu S, Kong X, Xie H, Fu J, He Y, Feng W, Liu N, Li J, Rainey JJ, Hall AJ, Vinjé J, Duan Z. Norovirus Outbreak Surveillance, China, 2016-2018. Emerg Infect Dis 2021; 26:437-445. [PMID: 32091361 PMCID: PMC7045832 DOI: 10.3201/eid2603.191183] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
CaliciNet China, a network of provincial, county, and city laboratories coordinated by the Chinese Centers for Disease Control and Prevention, was launched in October 2016 to monitor the epidemiology and genotype distribution of norovirus outbreaks in China. During October 2016–September 2018, a total of 556 norovirus outbreaks were reported, and positive fecal samples from 470 (84.5%) outbreaks were genotyped. Most of these outbreaks were associated with person-to-person transmission (95.1%), occurred in childcare centers or schools (78.2%), and were reported during November–March of each year (63.5%). During the 2-year study period, 81.2% of all norovirus outbreaks were typed as GII.2[P16]. In China, most norovirus outbreaks are reported by childcare centers or schools; GII.2[P16] is the predominant genotype. Ongoing surveillance by CaliciNet China will provide information about the evolving norovirus genotype distribution and outbreak characteristics important for the development of effective interventions, including vaccines.
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Atmar RL, Cramer JP, Baehner F, Han C, Borkowski A, Mendelman PM. An Exploratory Study of the Salivary Immunoglobulin A Responses to 1 Dose of a Norovirus Virus-Like Particle Candidate Vaccine in Healthy Adults. J Infect Dis 2019; 219:410-414. [PMID: 30203081 DOI: 10.1093/infdis/jiy529] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 08/31/2018] [Indexed: 01/08/2023] Open
Abstract
As noroviruses are transmitted through the fecal-oral route, we investigated humoral and mucosal (salivary immunoglobulin A [IgA]) immune responses in a phase 2 trial of Takeda's bivalent norovirus virus-like particle (VLP) vaccine candidate in 50 healthy 18- to 49-year-olds. The vaccine had an acceptable tolerability profile and induced rapid, robust humoral immune responses after 1 intramuscular dose of vaccine candidate. Seroresponses were evident 8 days after vaccination as panimmunoglobulin, IgA, and histo-blood group antigen-blocking antibodies against both vaccine GI.1 and GII.4c genotypes. Salivary IgA levels were approximately 1000-fold lower than serum concentrations, and moderately or strongly correlated with the serum IgA titers at all time-points.
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Affiliation(s)
- Robert L Atmar
- Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Jakob P Cramer
- Takeda Pharmaceuticals International AG, Zurich, Switzerland
| | - Frank Baehner
- Takeda Pharmaceuticals International AG, Zurich, Switzerland
| | - Cong Han
- Takeda Vaccines, Inc, Deerfield, Illinois
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Abstract
PURPOSE OF REVIEW Noroviruses are a major cause of gastroenteritis. This review summarizes new information on noroviruses that may lead to the development of improved measures for limiting their human health impact. RECENT FINDINGS GII.4 strains remain the most common human noroviruses causing disease, although GII.2 and GII.17 strains have recently emerged as dominant strains in some populations. Histo-blood group antigen (HBGA) expression on the gut mucosa drives susceptibility to different norovirus strains. Antibodies that block virus binding to these glycans correlate with protection from infection and illness. Immunocompromised patients are significantly impacted by norovirus infection, and the increasing availability of molecular diagnostics has improved infection recognition. Human noroviruses can be propagated in human intestinal enteroid cultures containing enterocytes that are a significant primary target for initiating infection. Strain-specific requirements for replication exist with bile being essential for some strains. Several vaccine candidates are progressing through preclinical and clinical development and studies of potential antiviral interventions are underway. SUMMARY Norovirus epidemiology is complex and requires continued surveillance to track the emergence of new strains and recombinants, especially with the continued progress in vaccine development. Humans are the best model to study disease pathogenesis and prevention. New in-vitro cultivation methods should lead to better approaches for understanding virus-host interactions and ultimately to improved strategies for mitigation of human norovirus-associated disease.
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Rotavirus VP6 as an Adjuvant for Bivalent Norovirus Vaccine Produced in Nicotiana benthamiana. Pharmaceutics 2019; 11:pharmaceutics11050229. [PMID: 31083495 PMCID: PMC6572255 DOI: 10.3390/pharmaceutics11050229] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 04/18/2019] [Accepted: 05/05/2019] [Indexed: 02/04/2023] Open
Abstract
Rotaviruses (RVs) and noroviruses (NoVs) are major causes of childhood acute gastroenteritis. During development of a combination vaccine based on NoV virus-like particles (VLP) and RV VP6 produced in baculovirus expression system in insect cells, a dual role of VP6 as a vaccine antigen and an adjuvant for NoV-specific immune responses was discovered. Here the VP6 adjuvant effect on bivalent GI.4 and GII.4-2006a NoV VLPs produced in Nicotiana benthamiana was investigated. BALB/c mice were immunized intradermally with suboptimal (0.3 µg) dose of each NoV VLP alone or combined with 10 µg of VP6, or equal doses of NoV VLPs and VP6 (1 µg/antigen). NoV-specific serum IgG antibodies and their blocking activity were analyzed using vaccine-homologous and heterologous NoV VLPs. Immunization with 0.3 µg NoV VLPs alone was insufficient to induce NoV-specific immune responses, but with co-administration of 10 µg of VP6, antibodies against vaccine-derived and heterologous NoV genotypes were generated. Furthermore, corresponding adjuvant effect of VP6 was observed with 1 µg dose. Efficient uptake and presentation of VP6 by dendritic cells was demonstrated in vitro. These results show that adjuvant effect of VP6 on bivalent NoV VLP vaccine is independent of the cell source used for vaccine production.
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Todd KV, Tripp RA. Human Norovirus: Experimental Models of Infection. Viruses 2019; 11:v11020151. [PMID: 30759780 PMCID: PMC6410082 DOI: 10.3390/v11020151] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 02/06/2019] [Accepted: 02/07/2019] [Indexed: 12/21/2022] Open
Abstract
Human noroviruses (HuNoVs) are a leading cause of acute gastroenteritis worldwide. HuNoV infections lead to substantial societal and economic burdens. There are currently no licensed vaccines or therapeutics for the prevention or treatment of HuNoVs. A lack of well-characterized in vitro and in vivo infection models has limited the development of HuNoV countermeasures. Experimental infection of human volunteers and the use of related viruses such as murine NoV have provided helpful insights into HuNoV biology and vaccine and therapeutic development. There remains a need for robust animal models and reverse genetic systems to further HuNoV research. This review summarizes available HuNoV animal models and reverse genetic systems, while providing insight into their usefulness for vaccine and therapeutic development.
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Affiliation(s)
- Kyle V Todd
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA.
| | - Ralph A Tripp
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA.
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