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Ly H. Highly pathogenic avian influenza H5N1 virus infection of companion animals. Virulence 2024; 15:2289780. [PMID: 38064414 PMCID: PMC10761027 DOI: 10.1080/21505594.2023.2289780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Affiliation(s)
- Hinh Ly
- Department of Veterinary & Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, Twin Cities, MN, USA
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2
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Yu J, Wen Z, Hu W, Chen M, Zhang Y, Liu S, Wang G, Wang Z, Wang D, Zhai SL, Wei WK, Li T, Liao M. Influenza D virus infection in China, 2022-2023. Emerg Microbes Infect 2024; 13:2343907. [PMID: 38738553 PMCID: PMC11097708 DOI: 10.1080/22221751.2024.2343907] [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: 12/14/2023] [Accepted: 04/11/2024] [Indexed: 05/14/2024]
Abstract
Influenza D virus (IDV) plays an important role in the bovine respiratory disease (BRD) complex. Its potential for the zoonotic transmission is of particular concern. In China, IDV has previously been identified in agricultural animals by molecular surveys with no live virus isolates reported. In this study, live IDVs were successfully isolated from cattle in China, which prompted us to further investigate the national prevalence, antigenic property, and infection biology of the virus. IDV RNA was detected in 11.1% (51/460) of cattle throughout the country in 2022-2023. Moreover, we conducted the first IDV serosurveillance in China, revealing a high seroprevalence (91.4%, 393/430) of IDV in cattle during the 2022-2023 winter season. Notably, all the 16 provinces from which cattle originated possessed seropositive animals, and 3 of them displayed the 100% IDV-seropositivity rate. In contrast, a very low seroprevalence of IDV was observed in pigs (3%, 3/100) and goats (1%, 1/100) during the same period of investigation. Furthermore, besides D/Yama2019 lineage-like IDVs, we discovered the D/660 lineage-like IDV in Chinese cattle, which has not been detected to date in Asia. Finally, the Chinese IDVs replicated robustly in diverse cell lines but less efficiently in the swine cell line. Considering the nationwide distribution, high seroprevalence, and appreciably genetic diversity, further studies are required to fully evaluate the risk of Chinese IDVs for both animal and human health in China, which can be evidently facilitated by IDV isolates reported in this study.
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Affiliation(s)
- Jieshi Yu
- State Key Laboratory of Swine and Poultry Breeding Industry, Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, People’s Republic of China
| | - Zhenyu Wen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, People’s Republic of China
| | - Wanke Hu
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, People’s Republic of China
| | - Mingwang Chen
- Zhongshan Animal Disease Control Center, Zhongshan, People’s Republic of China
| | - Yuanlong Zhang
- Guangdong Animal Disease Control Center, Guangzhou, People’s Republic of China
| | - Shasha Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People’s Republic of China
| | - Gang Wang
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, People’s Republic of China
| | - Zhao Wang
- School of Laboratory Animal & Shandong Laboratory Animal Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, People’s Republic of China
| | - Dan Wang
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
| | - Shao-lun Zhai
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, People’s Republic of China
| | - Wen-kang Wei
- State Key Laboratory of Swine and Poultry Breeding Industry, Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, People’s Republic of China
| | - Tianyu Li
- Zhongshan Animal Disease Control Center, Zhongshan, People’s Republic of China
- College of Animal Science and Technology, Guangxi University, Nanning, People’s Republic of China
| | - Ming Liao
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, People’s Republic of China
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, People’s Republic of China
- College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, People’s Republic of China
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3
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Tiwari A, Meriläinen P, Lindh E, Kitajima M, Österlund P, Ikonen N, Savolainen-Kopra C, Pitkänen T. Avian Influenza outbreaks: Human infection risks for beach users - One health concern and environmental surveillance implications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 943:173692. [PMID: 38825193 DOI: 10.1016/j.scitotenv.2024.173692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/30/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
Despite its popularity for water activities, such as swimming, surfing, fishing, and rafting, inland and coastal bathing areas occasionally experience outbreaks of highly pathogenic avian influenza virus (HPAI), including A(H5N1) clade 2.3.4.4b. Asymptomatic infections and symptomatic outbreaks often impact many aquatic birds, which increase chances of spill-over events to mammals and pose concerns for public health. This review examined the existing literature to assess avian influenza virus (AIV) transmission risks to beachgoers and the general population. A comprehensive understanding of factors governing such crossing of the AIV host range is currently lacking. There is limited knowledge on key factors affecting risk, such as species-specific interactions with host cells (including binding, entry, and replication via viral proteins hemagglutinin, neuraminidase, nucleoprotein, and polymerase basic protein 2), overcoming host restrictions, and innate immune response. AIV efficiently transmits between birds and to some extent between marine scavenger mammals in aquatic environments via consumption of infected birds. However, the current literature lacks evidence of zoonotic AIV transmission via contact with the aquatic environment or consumption of contaminated water. The zoonotic transmission risk of the circulating A(H5N1) clade 2.3.4.4b virus to the general population and beachgoers is currently low. Nevertheless, it is recommended to avoid direct contact with sick or dead birds and to refrain from bathing in locations where mass bird mortalities are reported. Increasing reports of AIVs spilling over to non-human mammals have raised valid concerns about possible virus mutations that lead to crossing the species barrier and subsequent risk of human infections and outbreaks.
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Affiliation(s)
- Ananda Tiwari
- Expert Microbiology Unit, Finnish Institute for Health and Welfare, Neulaniementie 4, Kuopio FI-70701, Finland; Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Agnes Sjöbergin katu 2, Helsinki FI-00014, Finland.
| | - Päivi Meriläinen
- Environmental Health Unit, Finnish Institute for Health and Welfare, Neulaniementie 4, Kuopio FI-70701, Finland
| | - Erika Lindh
- Expert Microbiology Unit, Finnish Institute for Health and Welfare, Mannerheimintie 166, Helsinki FI-00271, Finland
| | - Masaaki Kitajima
- Research Center for Water Environment Technology, School of Engineering, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Pamela Österlund
- Expert Microbiology Unit, Finnish Institute for Health and Welfare, Mannerheimintie 166, Helsinki FI-00271, Finland
| | - Niina Ikonen
- Expert Microbiology Unit, Finnish Institute for Health and Welfare, Mannerheimintie 166, Helsinki FI-00271, Finland
| | - Carita Savolainen-Kopra
- Expert Microbiology Unit, Finnish Institute for Health and Welfare, Mannerheimintie 166, Helsinki FI-00271, Finland
| | - Tarja Pitkänen
- Expert Microbiology Unit, Finnish Institute for Health and Welfare, Neulaniementie 4, Kuopio FI-70701, Finland; Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Agnes Sjöbergin katu 2, Helsinki FI-00014, Finland
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4
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Medina JE, Castañeda S, Camargo M, Garcia-Corredor DJ, Muñoz M, Ramírez JD. Exploring viral diversity and metagenomics in livestock: insights into disease emergence and spillover risks in cattle. Vet Res Commun 2024:10.1007/s11259-024-10403-2. [PMID: 38865041 DOI: 10.1007/s11259-024-10403-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 05/01/2024] [Indexed: 06/13/2024]
Abstract
Cattle have a significant impact on human societies in terms of both economics and health. Viral infections pose a relevant problem as they directly or indirectly disrupt the balance within cattle populations. This has negative consequences at the economic level for producers and territories, and also jeopardizes human health through the transmission of zoonotic diseases that can escalate into outbreaks or pandemics. To establish prevention strategies and control measures at various levels (animal, farm, region, or global), it is crucial to identify the viral agents present in animals. Various techniques, including virus isolation, serological tests, and molecular techniques like PCR, are typically employed for this purpose. However, these techniques have two major drawbacks: they are ineffective for non-culturable viruses, and they only detect a small fraction of the viruses present. In contrast, metagenomics offers a promising approach by providing a comprehensive and unbiased analysis for detecting all viruses in a given sample. It has the potential to identify rare or novel infectious agents promptly and establish a baseline of healthy animals. Nevertheless, the routine application of viral metagenomics for epidemiological surveillance and diagnostics faces challenges related to socioeconomic variables, such as resource availability and space dedicated to metagenomics, as well as the lack of standardized protocols and resulting heterogeneity in presenting results. This review aims to provide an overview of the current knowledge and prospects for using viral metagenomics to detect and identify viruses in cattle raised for livestock, while discussing the epidemiological and clinical implications.
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Affiliation(s)
- Julián Esteban Medina
- Centro de Investigaciones en Microbiología y Biotecnología - UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Sergio Castañeda
- Centro de Investigaciones en Microbiología y Biotecnología - UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Milena Camargo
- Centro de Investigaciones en Microbiología y Biotecnología - UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
- Centro de Tecnología en Salud (CETESA), Innovaseq SAS, Mosquera, Cundinamarca, Colombia
| | - Diego J Garcia-Corredor
- Centro de Investigaciones en Microbiología y Biotecnología - UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
- Grupo de Investigación en Medicina Veterinaria y Zootecnia, Facultad de Ciencias Agropecuarias, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia
| | - Marina Muñoz
- Centro de Investigaciones en Microbiología y Biotecnología - UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Juan David Ramírez
- Centro de Investigaciones en Microbiología y Biotecnología - UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia.
- Molecular Microbiology Laboratory, Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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5
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Naveed A, Yu J, Lawson S, Gao R, Ni S, Paulchakrabarti M, Choudhury B, Christopher-Hennings J, Nelson E, Sheng Z, Kennedy MA, Li F, Wang D. Receptor binding and immunogenic properties of the receptor binding domain of influenza D virus hemagglutinin-esterase-fusion protein expressed from Escherichia coli. Virology 2024; 597:110138. [PMID: 38880069 DOI: 10.1016/j.virol.2024.110138] [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: 04/01/2024] [Revised: 05/15/2024] [Accepted: 06/07/2024] [Indexed: 06/18/2024]
Abstract
The hemagglutinin-esterase-fusion (HEF) protein binds 9-O-acetylated sialic acids-containing glycans on the cell surface and drives influenza D virus (IDV) entry. The HEF is a primary determinant of the exceptional thermal and acid stability observed in IDV infection biology. Here, we expressed and purified the receptor binding domain (RBD) of the IDV HEF protein in Escherichia coli and characterized its receptor binding and antigenic properties. The data from these experiments indicate that (i) the RBD can bind with specificity to turkey red blood cells (RBC), and its binding can be specifically inhibited by IDV antibody; (ii) the RBD efficiently binds to the cell surface of MDCK cells expressing the receptor of IDV; and (iii) anti-RBD antibodies are capable of blocking RBD attachment to MDCK cells as well as of inhibiting the virus from agglutinating RBCs. These observations support the utility of this RBD in future receptor and entry studies of IDV.
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Affiliation(s)
- Ahsan Naveed
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Jieshi Yu
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Steven Lawson
- Department of Veterinary and Biomedical Science, South Dakota State University, Brookings, SD, 57007, USA
| | - Rongyuan Gao
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA
| | - Shuisong Ni
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
| | - Mousumi Paulchakrabarti
- Department of Cellular and Molecular Medicine, Glycobiology Research and Training Center, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Biswa Choudhury
- Department of Cellular and Molecular Medicine, Glycobiology Research and Training Center, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Jane Christopher-Hennings
- Department of Veterinary and Biomedical Science, South Dakota State University, Brookings, SD, 57007, USA
| | - Eric Nelson
- Department of Veterinary and Biomedical Science, South Dakota State University, Brookings, SD, 57007, USA
| | - Zizhang Sheng
- Zuckerman Mind Brian Behavior Institute, Columbia University, New York, NY, USA
| | - Michael A Kennedy
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
| | - Feng Li
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA.
| | - Dan Wang
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA.
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Feng J, Du Y, Chen L, Su W, Wei H, Liu A, Jiang X, Guo J, Dai C, Xu Y, Peng T. A quadrivalent recombinant influenza Hemagglutinin vaccine induced strong protective immune responses in animal models. Vaccine 2024:S0264-410X(24)00624-8. [PMID: 38834431 DOI: 10.1016/j.vaccine.2024.05.056] [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: 03/01/2024] [Revised: 05/05/2024] [Accepted: 05/21/2024] [Indexed: 06/06/2024]
Abstract
Globally, influenza poses a substantial threat to public health, serving as a major contributor to both morbidity and mortality. The current vaccines for seasonal influenza are not optimal. A novel recombinant hemagglutinin (rHA) protein-based quadrivalent seasonal influenza vaccine, SCVC101, has been developed. SCVC101-S contains standard dose protein (15μg of rHA per virus strain) and an oil-in-water adjuvant, CD-A, which enhances the immunogenicity and cross-protection of the vaccine. Preclinical studies in mice, rats, and rhesus macaques demonstrate that SCVC101-S induces robust humoral and cellular immune responses, surpassing those induced by commercially available vaccines. Notably, a single injection with SCVC101-S can induce a strong immune response in macaques, suggesting the potential for a standard-dose vaccination with a recombinant protein influenza vaccine. Furthermore, SCVC101-S induces cross-protection immune responses against heterologous viral strains, indicating broader protection than current vaccines. In conclusion, SCVC101-S has demonstrated safety and efficacy in preclinical settings and warrants further investigation in human clinical trials. Its potential as a valuable addition to the vaccines against seasonal influenza, particularly for the elderly population, is promising.
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Affiliation(s)
- Jin Feng
- Sino-French Hoffmann Institute, State Key Laboratory of Respiratory Disease, School of Basic Medical Science, Guangzhou Medical University, Guangzhou 511436, China; Guangzhou National Laboratory, Guangzhou Bio-Island, Guangzhou 510005, China; Guangdong South China Vaccine Co., Ltd., Guangzhou 510530, China
| | - Yingying Du
- Sino-French Hoffmann Institute, State Key Laboratory of Respiratory Disease, School of Basic Medical Science, Guangzhou Medical University, Guangzhou 511436, China; Guangdong South China Vaccine Co., Ltd., Guangzhou 510530, China
| | - Liyun Chen
- Guangdong South China Vaccine Co., Ltd., Guangzhou 510530, China
| | - Wenhan Su
- Guangdong South China Vaccine Co., Ltd., Guangzhou 510530, China
| | - Hailiu Wei
- Guangdong South China Vaccine Co., Ltd., Guangzhou 510530, China
| | - Aijiao Liu
- Guangdong South China Vaccine Co., Ltd., Guangzhou 510530, China
| | - Xiaojun Jiang
- Guangdong South China Vaccine Co., Ltd., Guangzhou 510530, China
| | - Jianmin Guo
- Guangzhou Bay Area Institute of Biomedicine, Guangdong Lewwin Pharmaceutical Research Institute Co., Ltd., Guangdong Provincial Key Laboratory of Drug Non-Clinical Evaluation and Research, Guangzhou 510900, China
| | - Cailing Dai
- Guangzhou Bay Area Institute of Biomedicine, Guangdong Lewwin Pharmaceutical Research Institute Co., Ltd., Guangdong Provincial Key Laboratory of Drug Non-Clinical Evaluation and Research, Guangzhou 510900, China
| | - Yuhua Xu
- Guangdong South China Vaccine Co., Ltd., Guangzhou 510530, China.
| | - Tao Peng
- Sino-French Hoffmann Institute, State Key Laboratory of Respiratory Disease, School of Basic Medical Science, Guangzhou Medical University, Guangzhou 511436, China; Guangdong South China Vaccine Co., Ltd., Guangzhou 510530, China.
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Khalil AM, Martinez-Sobrido L, Mostafa A. Zoonosis and zooanthroponosis of emerging respiratory viruses. Front Cell Infect Microbiol 2024; 13:1232772. [PMID: 38249300 PMCID: PMC10796657 DOI: 10.3389/fcimb.2023.1232772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 12/11/2023] [Indexed: 01/23/2024] Open
Abstract
Lung infections in Influenza-Like Illness (ILI) are triggered by a variety of respiratory viruses. All human pandemics have been caused by the members of two major virus families, namely Orthomyxoviridae (influenza A viruses (IAVs); subtypes H1N1, H2N2, and H3N2) and Coronaviridae (severe acute respiratory syndrome coronavirus 2, SARS-CoV-2). These viruses acquired some adaptive changes in a known intermediate host including domestic birds (IAVs) or unknown intermediate host (SARS-CoV-2) following transmission from their natural reservoirs (e.g. migratory birds or bats, respectively). Verily, these acquired adaptive substitutions facilitated crossing species barriers by these viruses to infect humans in a phenomenon that is known as zoonosis. Besides, these adaptive substitutions aided the variant strain to transmit horizontally to other contact non-human animal species including pets and wild animals (zooanthroponosis). Herein we discuss the main zoonotic and reverse-zoonosis events that occurred during the last two pandemics of influenza A/H1N1 and SARS-CoV-2. We also highlight the impact of interspecies transmission of these pandemic viruses on virus evolution and possible prophylactic and therapeutic interventions. Based on information available and presented in this review article, it is important to close monitoring viral zoonosis and viral reverse zoonosis of pandemic strains within a One-Health and One-World approach to mitigate their unforeseen risks, such as virus evolution and resistance to limited prophylactic and therapeutic interventions.
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Affiliation(s)
- Ahmed Magdy Khalil
- Disease Intervention & Prevention and Host Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, United States
- Department of Zoonotic Diseases, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Luis Martinez-Sobrido
- Disease Intervention & Prevention and Host Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, United States
| | - Ahmed Mostafa
- Disease Intervention & Prevention and Host Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, United States
- Center of Scientific Excellence for Influenza Viruses, Water Pollution Research Department, Environment and Climate Change Research Institute, National Research Centre, Giza, Egypt
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8
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Liang Y. Pathogenicity and virulence of influenza. Virulence 2023; 14:2223057. [PMID: 37339323 DOI: 10.1080/21505594.2023.2223057] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/22/2023] Open
Abstract
Influenza viruses, including four major types (A, B, C, and D), can cause mild-to-severe and lethal diseases in humans and animals. Influenza viruses evolve rapidly through antigenic drift (mutation) and shift (reassortment of the segmented viral genome). New variants, strains, and subtypes have emerged frequently, causing epidemic, zoonotic, and pandemic infections, despite currently available vaccines and antiviral drugs. In recent years, avian influenza viruses, such as H5 and H7 subtypes, have caused hundreds to thousands of zoonotic infections in humans with high case fatality rates. The likelihood of these animal influenza viruses acquiring airborne transmission in humans through viral evolution poses great concern for the next pandemic. Severe influenza viral disease is caused by both direct viral cytopathic effects and exacerbated host immune response against high viral loads. Studies have identified various mutations in viral genes that increase viral replication and transmission, alter tissue tropism or species specificity, and evade antivirals or pre-existing immunity. Significant progress has also been made in identifying and characterizing the host components that mediate antiviral responses, pro-viral functions, or immunopathogenesis following influenza viral infections. This review summarizes the current knowledge on viral determinants of influenza virulence and pathogenicity, protective and immunopathogenic aspects of host innate and adaptive immune responses, and antiviral and pro-viral roles of host factors and cellular signalling pathways. Understanding the molecular mechanisms of viral virulence factors and virus-host interactions is critical for the development of preventive and therapeutic measures against influenza diseases.
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Affiliation(s)
- Yuying Liang
- Department of Veterinary and Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, USA
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Vega-Rodriguez W, Ly H. Epidemiological, serological, and genetic evidence of influenza D virus infection in humans: Is it a justifiable cause for concern? Virulence 2023; 14:2150443. [PMID: 36411274 PMCID: PMC9817117 DOI: 10.1080/21505594.2022.2150443] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Affiliation(s)
| | - Hinh Ly
- Department of Veterinary & Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, Twin Cities, MN, USA,CONTACT Hinh Ly
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10
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Li H, Wang A, Zhang Y, Wei F. Diverse roles of lung macrophages in the immune response to influenza A virus. Front Microbiol 2023; 14:1260543. [PMID: 37779697 PMCID: PMC10534047 DOI: 10.3389/fmicb.2023.1260543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 08/16/2023] [Indexed: 10/03/2023] Open
Abstract
Influenza viruses are one of the major causes of human respiratory infections and the newly emerging and re-emerging strains of influenza virus are the cause of seasonal epidemics and occasional pandemics, resulting in a huge threat to global public health systems. As one of the early immune cells can rapidly recognize and respond to influenza viruses in the respiratory, lung macrophages play an important role in controlling the severity of influenza disease by limiting viral replication, modulating the local inflammatory response, and initiating subsequent adaptive immune responses. However, influenza virus reproduction in macrophages is both strain- and macrophage type-dependent, and ineffective replication of some viral strains in mouse macrophages has been observed. This review discusses the function of lung macrophages in influenza virus infection in order to better understand the pathogenesis of the influenza virus.
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Affiliation(s)
- Haoning Li
- College of Animal Science and Technology, Ningxia University, Yinchuan, China
| | - Aoxue Wang
- College of Animal Science and Technology, Ningxia University, Yinchuan, China
| | - Yuying Zhang
- School of Biological Science and Technology, University of Jinan, Jinan, China
| | - Fanhua Wei
- College of Animal Science and Technology, Ningxia University, Yinchuan, China
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11
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Petrone-García VM, Castellanos-Huerta I, Tellez-Isaias G. Editorial: High-impact respiratory RNA virus diseases. Front Vet Sci 2023; 10:1273650. [PMID: 37675076 PMCID: PMC10478262 DOI: 10.3389/fvets.2023.1273650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 09/08/2023] Open
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12
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Parys A, Vereecke N, Vandoorn E, Theuns S, Van Reeth K. Surveillance and Genomic Characterization of Influenza A and D Viruses in Swine, Belgium and the Netherlands, 2019-2021. Emerg Infect Dis 2023; 29:1459-1464. [PMID: 37347825 PMCID: PMC10310360 DOI: 10.3201/eid2907.221499] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2023] Open
Abstract
During 2019-2021, we isolated 62 swine influenza A viruses in Belgium and the Netherlands. We also detected influenza D in pigs in the Netherlands. The ever-changing diversity of influenza viruses and the identification of influenza D emphasize the need for more virus surveillance.
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Seidel J, Magzamen S, Wang YH, Neujahr V, Schaeffer JW. Lessons from Dairy Farmers for Occupational Allergy and Respiratory Disease. Curr Allergy Asthma Rep 2023:10.1007/s11882-023-01081-2. [PMID: 37191901 PMCID: PMC10186320 DOI: 10.1007/s11882-023-01081-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2023] [Indexed: 05/17/2023]
Abstract
PURPOSE OF REVIEW Exposure to bioaerosols at dairies has long been associated with allergy, respiratory disease, and decreases in lung function. Recent advancements in exposure assessments have aided our understanding on the size distribution and composition of these bioaerosols, but investigations focusing solely on exposures may overlook important intrinsic factors impacting worker's susceptibility to disease. RECENT FINDINGS In our review, we discuss the most recent studies examining the exposures and genetic factors that contribute to occupational disease in dairy work. We also review more recent concerns in livestock work associated with zoonotic pathogens, antimicrobial resistant genes, and the role of the human microbiome. The studies highlighted in this review demonstrate the need for further research to better understand bioaerosol exposure-response relationships in the context of extrinsic and intrinsic factors, antibiotic-resistant genes, viral pathogens, and the human microbiome to help inform effective interventions that improve respiratory health among dairy farmers.
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Affiliation(s)
- J Seidel
- Department of Environmental and Radiological Health Sciences, Colorado State University, 1681 Campus Delivery, Fort Collins, CO, 80523-1681, USA
| | - S Magzamen
- Department of Environmental and Radiological Health Sciences, Colorado State University, 1681 Campus Delivery, Fort Collins, CO, 80523-1681, USA
| | - Y H Wang
- Department of Environmental and Radiological Health Sciences, Colorado State University, 1681 Campus Delivery, Fort Collins, CO, 80523-1681, USA
| | - V Neujahr
- Department of Environmental and Radiological Health Sciences, Colorado State University, 1681 Campus Delivery, Fort Collins, CO, 80523-1681, USA
| | - J W Schaeffer
- Department of Environmental and Radiological Health Sciences, Colorado State University, 1681 Campus Delivery, Fort Collins, CO, 80523-1681, USA.
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14
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Leibler JH, Abdelgadir A, Seidel J, White RF, Johnson WE, Reynolds SJ, Gray GC, Schaeffer JW. Influenza D virus exposure among US cattle workers: A call for surveillance. Zoonoses Public Health 2023; 70:166-170. [PMID: 36370131 PMCID: PMC10099784 DOI: 10.1111/zph.13008] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/27/2022] [Accepted: 10/26/2022] [Indexed: 11/13/2022]
Abstract
Although cattle are a reservoir for influenza D virus (IDV), little is known about human exposure to IDV. We assessed IDV exposure and associated health effects among United States dairy workers, a population at heightened risk of cattle zoonoses. In prospective, cross-shift sampling of 31 workers employed at five large-herd dairy operations in two states, we found evidence of IDV in the nasal washes of 67% of participants at least once during the 5-day study period. IDV exposure was not associated with respiratory symptoms in these workers. These findings suggest that IDV is present in dairy cattle environments and can result in worker exposure.
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Affiliation(s)
- Jessica H Leibler
- Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts, USA
| | - Anfal Abdelgadir
- Division of Infectious Diseases, Duke University School of Medicine, Durham, North Carolina, USA.,Duke Global Health Institute, Duke University, Durham, North Carolina, USA
| | - James Seidel
- High Plains Center for Agricultural Health and Safety, Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Roberta F White
- Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts, USA.,Department of Neurology, Boston University School of Medicine, Boston, Massachusetts, USA
| | - W Evan Johnson
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Stephen J Reynolds
- High Plains Center for Agricultural Health and Safety, Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Gregory C Gray
- Division of Infectious Diseases, Duke University School of Medicine, Durham, North Carolina, USA.,Duke Global Health Institute, Duke University, Durham, North Carolina, USA.,Division of Infectious Diseases, University of Texas Medical Branch, Galveston, Texas, USA
| | - Joshua W Schaeffer
- High Plains Center for Agricultural Health and Safety, Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado, USA
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15
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Characterisation of the Upper Respiratory Tract Virome of Feedlot Cattle and Its Association with Bovine Respiratory Disease. Viruses 2023; 15:v15020455. [PMID: 36851669 PMCID: PMC9961997 DOI: 10.3390/v15020455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 02/10/2023] Open
Abstract
Bovine respiratory disease (BRD) is a major health problem within the global cattle industry. This disease has a complex aetiology, with viruses playing an integral role. In this study, metagenomics was used to sequence viral nucleic acids in the nasal swabs of BRD-affected cattle. The viruses detected included those that are well known for their association with BRD in Australia (bovine viral diarrhoea virus 1), as well as viruses known to be present but not fully characterised (bovine coronavirus) and viruses that have not been reported in BRD-affected cattle in Australia (bovine rhinitis, bovine influenza D, and bovine nidovirus). The nasal swabs from a case-control study were subsequently tested for 10 viruses, and the presence of at least one virus was found to be significantly associated with BRD. Some of the more recently detected viruses had inconsistent associations with BRD. Full genome sequences for bovine coronavirus, a virus increasingly associated with BRD, and bovine nidovirus were completed. Both viruses belong to the Coronaviridae family, which are frequently associated with disease in mammals. This study has provided greater insights into the viral pathogens associated with BRD and highlighted the need for further studies to more precisely elucidate the roles viruses play in BRD.
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16
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Influenza D Virus: A Review and Update of Its Role in Bovine Respiratory Syndrome. Viruses 2022; 14:v14122717. [PMID: 36560721 PMCID: PMC9785601 DOI: 10.3390/v14122717] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/30/2022] [Accepted: 12/04/2022] [Indexed: 12/07/2022] Open
Abstract
Bovine respiratory disease (BRD) is one of the most prevalent, deadly, and costly diseases in young cattle. BRD has been recognized as a multifactorial disease caused mainly by viruses (bovine herpesvirus, BVDV, parainfluenza-3 virus, respiratory syncytial virus, and bovine coronavirus) and bacteria (Mycoplasma bovis, Pasteurella multocida, Mannheimia haemolytica and Histophilus somni). However, other microorganisms have been recognized to cause BRD. Influenza D virus (IDV) is a novel RNA pathogen belonging to the family Orthomyxoviridae, first discovered in 2011. It is distributed worldwide in cattle, the main reservoir. IDV has been demonstrated to play a role in BRD, with proven ability to cause respiratory disease, a high transmission rate, and potentiate the effects of other pathogens. The transmission mechanisms of this virus are by direct contact and by aerosol route over short distances. IDV causes lesions in the upper respiratory tract of calves and can also replicate in the lower respiratory tract and cause pneumonia. There is currently no commercial vaccine or specific treatment for IDV. It should be noted that IDV has zoonotic potential and could be a major public health concern if there is a drastic change in its pathogenicity to humans. This review summarizes current knowledge regarding IDV structure, pathogenesis, clinical significance, and epidemiology.
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17
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Recent strains of influenza D virus create a new genetic cluster for European strains. Microb Pathog 2022; 172:105769. [PMID: 36103901 DOI: 10.1016/j.micpath.2022.105769] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 09/02/2022] [Accepted: 09/07/2022] [Indexed: 11/21/2022]
Abstract
Bovine respiratory diseases (BRD) are one of the significant health problems for cattle breeding industry. Influenza D virus (IDV) alone or in combination with other respiratory pathogens plays a role in BRD. According to the IDV-HEF gene region, phylogenetic analyzes revealed five lineages: D/OK, D/660, D/Yama2016, D/Yama2019, and D/CA2019, so far. In this study, despite no success in virus isolation, the presence of IDV was investigated by RT-PCR (partial HEF gene region) in 219 nasal swab samples collected from cattle with BRD between 2012 and 2021. The presence of IDV was demonstrated in two samples, and genome characterization data of the IDV sequences both in the partial and complete HEF gene regions showed that one of the obtained sequences (D/bovine/Turkey-Bursa/ET-138/2021) was in the lineage D/Yama2019 while the other (D/bovine/Turkey-Bursa/ET-130/2013) created a new lineage tentatively called D/Bursa2013 as including few partial IDV sequences reported in Europe. Two nucleotide substitutions (nt252A→G, nt299T→C) were typically characterized for the tentative lineage D/Bursa2013, one of which also leads to a unique amino acid change at position aa100 (V→A). When the amino acid differences between the lineages were evaluated, amino acid substitution changes were detected in four regions [aa12 (Alanine→Aspartic acid), aa19 (Glycine→Arginine), aa22 (Proline→Serine), and aa110 (Aspargine→Arginine)] of the D/Yama2019 lineage, unlike the other lineages. Considering the most common D/OK lineage in Europe, many nucleotide substitutions were shown between D/OK and D/Bursa2013. Accordingly, aminoacid substitutions were observed in aa27 (Threonine→Asparagine) and aa100 (Valine→Alanine) in the D/bovine/Turkey-Bursa/ET-138/2021 sequence. Study results describe the circulation of D/Yama2019 and D/Bursa2013 (new lineage) in Turkey. Expansion of new strains seems possible due to the high mutation rate of influenza viruses. It is important to understand the development of IDV with comprehensive characterization studies.
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Abstract
Annual seasonal influenza epidemics of variable severity caused by influenza A and B virus infections result in substantial disease burden worldwide. Seasonal influenza virus circulation declined markedly in 2020-21 after SARS-CoV-2 emerged but increased in 2021-22. Most people with influenza have abrupt onset of respiratory symptoms and myalgia with or without fever and recover within 1 week, but some can experience severe or fatal complications. Prevention is primarily by annual influenza vaccination, with efforts underway to develop new vaccines with improved effectiveness. Sporadic zoonotic infections with novel influenza A viruses of avian or swine origin continue to pose pandemic threats. In this Seminar, we discuss updates of key influenza issues for clinicians, in particular epidemiology, virology, and pathogenesis, diagnostic testing including multiplex assays that detect influenza viruses and SARS-CoV-2, complications, antiviral treatment, influenza vaccines, infection prevention, and non-pharmaceutical interventions, and highlight gaps in clinical management and priorities for clinical research.
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Affiliation(s)
- Timothy M Uyeki
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA.
| | - David S Hui
- Division of Respiratory Medicine and Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong Special Administrative Region, China
| | - Maria Zambon
- Virology Reference Department, UK Health Security Agency, London, UK
| | - David E Wentworth
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Arnold S Monto
- Center for Respiratory Research and Response, Department of Epidemiology, University of Michigan, Ann Arbor, MI, USA
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19
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Molini U, Curini V, Jacobs E, Tongo E, Berjaoui S, Hemberger MY, Puglia I, Jago M, Khaiseb S, Cattoli G, Dundon WG, Lorusso A, Di Giallonardo F. First influenza D virus full-genome sequence retrieved from livestock in Namibia, Africa. Acta Trop 2022; 232:106482. [PMID: 35537488 DOI: 10.1016/j.actatropica.2022.106482] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/06/2022] [Accepted: 04/20/2022] [Indexed: 01/04/2023]
Abstract
Influenza D virus (IDV) was first isolated in 2011 in the USA and has since been shown to circulate in cattle, pigs, sheep, wild boar, and camels. In Africa, there is limited data on the epidemiology of IDV and, so, we investigated the presence of IDV among domestic ruminants and wild animals in Namibia by screening nasal swabs using an IDV-specific molecular assay. IDV RNA was detected in bovines (n=2), giraffes (n=2) and wildebeest (n=1). The hemagglutinin-esterase-fusion (HEF) gene from one of the bovine and the wildebeest samples was successfully sequenced as well as the full genome for the second bovine sample. Phylogenetic analysis of the HEF gene positioned the African virus variants within the D/OK lineage but with a long branch. The African variant had an amino acid diversity of 2.41% and most likely represents a distinct genotype within the lineage. Notably, the polymerase acidic protein gene (PA) was more closely related to a different lineage (D/660), indicative of potential reassortment. This is the first genetic characterization of IDV in Africa and it adds important data to our understanding of the global IDV distribution.
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20
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Havasi A, Visan S, Cainap C, Cainap SS, Mihaila AA, Pop LA. Influenza A, Influenza B, and SARS-CoV-2 Similarities and Differences – A Focus on Diagnosis. Front Microbiol 2022; 13:908525. [PMID: 35794916 PMCID: PMC9251468 DOI: 10.3389/fmicb.2022.908525] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/23/2022] [Indexed: 12/23/2022] Open
Abstract
In late December 2019, the first cases of viral pneumonia caused by an unidentified pathogen were reported in China. Two years later, SARS-CoV-2 was responsible for almost 450 million cases, claiming more than 6 million lives. The COVID-19 pandemic strained the limits of healthcare systems all across the world. Identifying viral RNA through real-time reverse transcription-polymerase chain reaction remains the gold standard in diagnosing SARS-CoV-2 infection. However, equipment cost, availability, and the need for trained personnel limited testing capacity. Through an unprecedented research effort, new diagnostic techniques such as rapid diagnostic testing, isothermal amplification techniques, and next-generation sequencing were developed, enabling accurate and accessible diagnosis. Influenza viruses are responsible for seasonal outbreaks infecting up to a quarter of the human population worldwide. Influenza and SARS-CoV-2 present with flu-like symptoms, making the differential diagnosis challenging solely on clinical presentation. Healthcare systems are likely to be faced with overlapping SARS-CoV-2 and Influenza outbreaks. This review aims to present the similarities and differences of both infections while focusing on the diagnosis. We discuss the clinical presentation of Influenza and SARS-CoV-2 and techniques available for diagnosis. Furthermore, we summarize available data regarding the multiplex diagnostic assay of both viral infections.
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Affiliation(s)
- Andrei Havasi
- Department of Oncology, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Medical Oncology, The Oncology Institute “Prof. Dr. Ion Chiricuta”, Cluj-Napoca, Romania
| | - Simona Visan
- Department of Genetics, Genomics and Experimental Pathology, The Oncology Institute “Prof. Dr. Ion Chiricuta”, Cluj-Napoca, Romania
| | - Calin Cainap
- Department of Oncology, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Medical Oncology, The Oncology Institute “Prof. Dr. Ion Chiricuta”, Cluj-Napoca, Romania
| | - Simona Sorana Cainap
- Pediatric Clinic No. 2, Department of Pediatric Cardiology, Emergency County Hospital for Children, Cluj-Napoca, Romania
- Department of Mother and Child, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
- *Correspondence: Simona Sorana Cainap, ;
| | - Alin Adrian Mihaila
- Faculty of Economics and Business Administration, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Laura-Ancuta Pop
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
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21
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Guan M, Jacobson O, Sarafianos G, Baroch J, Deliberto TJ, Wan XF. Exposure of white-tailed deer in North America to influenza D virus. Virology 2022; 573:111-117. [PMID: 35751973 DOI: 10.1016/j.virol.2022.06.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/08/2022] [Accepted: 06/08/2022] [Indexed: 11/25/2022]
Abstract
Influenza D virus (IDV) infections have been identified worldwide in cattle, swine, camelid, and small ruminants, mostly in domestic livestock. Here we report that the wild white-tailed deer in North America were exposed to IDVs, suggesting IDVs infect a wide range of hosts including wild animal populations.
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Affiliation(s)
- Minhui Guan
- Center for Influenza and Emerging Infectious Diseases, Columbia, MO, USA; School of Medicine, University of Missouri, Columbia, MO, USA; Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
| | - Olivia Jacobson
- Center for Influenza and Emerging Infectious Diseases, Columbia, MO, USA; School of Medicine, University of Missouri, Columbia, MO, USA; Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
| | - George Sarafianos
- Center for Influenza and Emerging Infectious Diseases, Columbia, MO, USA; School of Medicine, University of Missouri, Columbia, MO, USA; Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
| | - John Baroch
- USDA Animal and Plant Health Inspection Service, Wildlife Services, Fort Collins, CO, USA
| | - Thomas J Deliberto
- USDA Animal and Plant Health Inspection Service, Wildlife Services, Fort Collins, CO, USA.
| | - Xiu-Feng Wan
- Center for Influenza and Emerging Infectious Diseases, Columbia, MO, USA; School of Medicine, University of Missouri, Columbia, MO, USA; Bond Life Sciences Center, University of Missouri, Columbia, MO, USA; College of Engineering, University of Missouri, Columbia, MO, USA.
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22
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Comparing Influenza Virus Biology for Understanding Influenza D Virus. Viruses 2022; 14:v14051036. [PMID: 35632777 PMCID: PMC9147167 DOI: 10.3390/v14051036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 02/06/2023] Open
Abstract
The newest type of influenza virus, influenza D virus (IDV), was isolated in 2011. IDV circulates in several animal species worldwide, causing mild respiratory illness in its natural hosts. Importantly, IDV does not cause clinical disease in humans and does not spread easily from person to person. Here, we review what is known about the host–pathogen interactions that may limit IDV illness. We focus on early immune interactions between the virus and infected host cells in our summary of what is known about IDV pathogenesis. This work establishes a foundation for future research into IDV infection and immunity in mammalian hosts.
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23
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Forecasting the Potential Number of Influenza-like Illness Cases by Fusing Internet Public Opinion. SUSTAINABILITY 2022. [DOI: 10.3390/su14052803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
As influenza viruses mutate rapidly, a prediction model for potential outbreaks of influenza-like illnesses helps detect the spread of the illnesses in real time. In order to create a better prediction model, in this study, in addition to using the traditional hydrological and atmospheric data, features, such as popular search keywords on Google Trends, public holiday information, population density, air quality indices, and the numbers of COVID-19 confirmed cases, were also used to train the model in this research. Furthermore, Random Forest and XGBoost were combined and used in the proposed prediction model to increase the prediction accuracy. The training data used in this research were the historical data taken from 2016 to 2021. In our experiments, different combinations of features were tested. The results show that features, such as popular search keywords on Google Trends, the numbers of COVID-19 confirmed cases, and air quality indices can improve the outcome of the prediction model. The evaluation results showed that the error rate between the predicted results and the actual number of influenza-like cases form Week 15 to Week 18 fell to less than 5%. The outbreak of COVID-19 in Taiwan began in Week 19 and resulted in a sharp rise in the number of clinic or hospital visits by patients of influenza-like illnesses. After that, from Week 21 to Week 26, the error rate between the predicted and actual numbers of influenza-like cases in the later period dropped down to 13%. It can be confirmed from the actual experimental results in this research that the use of the ensemble learning prediction model proposed in this research can accurately predict the trend of influenza-like cases.
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24
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Trombetta CM, Montomoli E, Di Bartolo I, Ostanello F, Chiapponi C, Marchi S. Detection of antibodies against influenza D virus in swine veterinarians in Italy in 2004. J Med Virol 2021; 94:2855-2859. [PMID: 34811769 PMCID: PMC9299042 DOI: 10.1002/jmv.27466] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/15/2021] [Accepted: 11/19/2021] [Indexed: 11/10/2022]
Abstract
Influenza D virus (IDV) was first isolated from a swine with respiratory disease symptoms in 2011 in the United States. Epidemiological and serological studies support the hypothesis that cattle represent the natural reservoir of IDV with periodical spillover events to other animal hosts. Little is known about the seroprevalence in humans and in specific target groups such as veterinarians in Italy. This study was designed to assess the prevalence of antibodies against two influenza D lineages (D/660 and D/OK) in Italy in archived serum samples from veterinarians working with swine collected in 2004. Serum samples were tested by haemagglutination inhibition (HI) and virus neutralization (VN) assays. Results showed that 4.88% (4/82) of tested samples were positive for D/660 and 2.44% (2/82) for D/OK by HI assay. Three out of four samples showed positivity when tested by VN assay. Our data suggest undetected IDVs might have circulated and/or been introduced in Italy as early as 2004 at least in some animal species such as swine. In addition, it seems that the virus was circulating among veterinarians before the first isolation in 2011. This finding highlights the importance to continue monitoring the IDV spread in animals and humans for more detailed surveillance.
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Affiliation(s)
| | - Emanuele Montomoli
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy.,VisMederi srl, Siena, Italy.,VisMederi Research srl, Siena, Italy
| | - Ilaria Di Bartolo
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Rome, Italy
| | - Fabio Ostanello
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Chiara Chiapponi
- Sede territoriale di Parma, OIE Reference Laboratory for Swine Influenza, Istituto Zooprofilattico Sperimentale della Lombardia ed Emilia Romagna, Brescia, Italy
| | - Serena Marchi
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
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25
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Identification of One Critical Amino Acid Residue of the Nucleoprotein as a Determinant for In Vitro Replication Fitness of Influenza D Virus. J Virol 2021; 95:e0097121. [PMID: 34190601 DOI: 10.1128/jvi.00971-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The newly identified influenza D virus (IDV) of the Orthomyxoviridae family has a wide host range with a broad geographical distribution. Despite the first appearance in U.S. pig herds in 2011, subsequent studies demonstrated that IDV is widespread in global cattle populations, supporting a theory that IDV utilizes bovines as a primary reservoir. Our investigation of the two reference influenza D viruses, D/swine/Oklahoma/1334/2011 (OK/11), isolated from swine, and D/Bovine/Oklahoma/660/2013 (660/13), isolated from cattle, revealed that 660/13 replicated to titers approximately 100-fold higher than those for OK/11 in multiple cell lines. By using a recently developed IDV reverse-genetics system derived from low-titer OK/11, we generated recombinant chimeric OK/11 viruses in which one of the seven genome segments was replaced with its counterpart from high-titer 660/13 virus. Further characterization demonstrated that the replication level of the chimeric OK/11 virus was significantly increased only when harboring the 660/13 nucleoprotein (NP) segment. Finally, through both gain-of-function and loss-of-function experiments, we identified that one amino acid residue at position 381, located in the body domain of NP protein, was a key determinant for the replication difference between the low-titer OK/11 virus and the high-titer 660/13 virus. Taken together, our findings provide important insight into IDV replication fitness mediated by the NP protein, which should facilitate future study of the infectious virus particle production mechanism of IDV. IMPORTANCE Little is known about the virus infection and production mechanism for newly discovered influenza D virus (IDV), which utilizes bovines as a primary reservoir, with frequent spillover to new hosts, including swine. In this study, we showed that of two well-characterized IDVs, 660/13 replicated more efficiently (approximately 100-fold higher) than OK/11. Using a recently developed IDV reverse-genetics system, we identified viral nucleoprotein (NP) as a primary determinant of the different replication capacities observed between these two nearly identical viruses. Mechanistic investigation further revealed that a mutation at NP position 381 evidently modulated virus fitness. Taken together, these observations indicate that IDV NP protein performs a critical role in infectious virus particle production. Our study thus illustrates an NP-based mechanism for efficient IDV infection and production in vitro.
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26
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Replication-Competent ΔNS1 Influenza A Viruses Expressing Reporter Genes. Viruses 2021; 13:v13040698. [PMID: 33920517 PMCID: PMC8072579 DOI: 10.3390/v13040698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/08/2021] [Accepted: 04/16/2021] [Indexed: 11/17/2022] Open
Abstract
The influenza A virus (IAV) is able to infect multiple mammalian and avian species, and in humans IAV is responsible for annual seasonal epidemics and occasional pandemics of respiratory disease with significant health and economic impacts. Studying IAV involves laborious secondary methodologies to identify infected cells. Therefore, to circumvent this requirement, in recent years, multiple replication-competent infectious IAV expressing traceable reporter genes have been developed. These IAVs have been very useful for in vitro and/or in vivo studies of viral replication, identification of neutralizing antibodies or antivirals, and in studies to evaluate vaccine efficacy, among others. In this report, we describe, for the first time, the generation and characterization of two replication-competent influenza A/Puerto Rico/8/1934 H1N1 (PR8) viruses where the viral non-structural protein 1 (NS1) was substituted by the monomeric (m)Cherry fluorescent or the NanoLuc luciferase (Nluc) proteins. The ΔNS1 mCherry was able to replicate in cultured cells and in Signal Transducer and Activator of Transcription 1 (STAT1) deficient mice, although at a lower extent than a wild-type (WT) PR8 virus expressing the same mCherry fluorescent protein (WT mCherry). Notably, expression of either reporter gene (mCherry or Nluc) was detected in infected cells by fluorescent microscopy or luciferase plate readers, respectively. ΔNS1 IAV expressing reporter genes provide a novel approach to better understand the biology and pathogenesis of IAV, and represent an excellent tool to develop new therapeutic approaches against IAV infections.
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27
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Identification of amino acid residues required for inhibition of host gene expression by influenza A/Viet Nam/1203/2004 H5N1 PA-X. J Virol 2021; 96:e0040821. [PMID: 33853954 DOI: 10.1128/jvi.00408-21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PA-X is a non-structural protein of influenza A virus (IAV), which is encoded by the polymerase acidic (PA) N-terminal region that contains a C-terminal +1 frameshifted sequence. IAV PA-X protein modulates virus-induced host innate immune responses and viral pathogenicity via suppression of host gene expression or cellular shutoff, through cellular mRNA cleavage. Highly pathogenic avian influenza viruses (HPAIV) of the H5N1 subtype naturally infect different avian species, they have an enormous economic impact in the poultry farming, and they also have zoonotic and pandemic potential, representing a risk to human public health. In the present study, we describe a novel bacteria-based approach to identify amino acid residues in the PA-X protein of the HPAIV A/Viet Nam/1203/2004 H5N1 that are important for its ability to inhibit host protein expression or cellular shutoff activity. Identified PA-X mutants displayed a reduced shutoff activity as compared to that of the wild-type (WT) A/Viet Nam/1203/2004 H5N1 PA-X protein. Notably, this new bacteria-based screening allowed us to identify amino acid residues widely distributed over the entire N-terminal region of PA-X. Furthermore, we found that some of the residues affecting A/Viet Nam/1203/2004 H5N1 PA-X host shutoff activity also affect PA polymerase activity in a minigenome assay. This information could be used for the rational design of new and more effective compounds with antiviral activity against IAV. Moreover, our results demonstrate the feasibility of using this bacteria-based approach to identify amino acid residues important for the activity of viral proteins to inhibit host gene expression. IMPORTANCE Highly pathogenic avian influenza viruses (HPAIV) continue to pose a huge threat to global animal and human health. Despite of the limited genome size of Influenza A virus (IAV), the virus encodes eight main viral structural proteins and multiple accessory non-structural proteins, depending on the IAV type, subtype or strain. One of the IAV accessory proteins, PA-X, is encoded by the polymerase acidic (PA) protein and is involved in pathogenicity through the modulation of IAV-induced host inflammatory and innate immune responses. However, the molecular mechanism(s) of IAV PA-X regulation of the host immune response is not well understood. In this work, we used, for the first time, a bacteria-based approach for the identification of amino acids important for the ability of IAV PA-X to induce host shutoff activity and describe novel residues relevant for its ability to inhibit host gene expression, and their contribution in PA polymerase activity.
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Uprety T, Sreenivasan CC, Bhattarai S, Wang D, Kaushik RS, Li F. Isolation and development of bovine primary respiratory cells as model to study influenza D virus infection. Virology 2021; 559:89-99. [PMID: 33862336 DOI: 10.1016/j.virol.2021.04.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/30/2021] [Accepted: 04/05/2021] [Indexed: 02/06/2023]
Abstract
Influenza D virus (IDV) is a novel type of influenza virus that infects and causes respiratory illness in bovines. Lack of host-specific in vitro model that can recapitulate morphology and physiology of in vivo airway epithelial cells has impeded the study of IDV infection. Here, we established and characterized bovine primary respiratory epithelial cells from nasal turbinate, soft palate, and trachea of the same calf. All three cell types showed characteristics peculiar of epithelial cells, polarized into apical-basolateral membrane, and formed tight junctions. Furthermore, these cells expressed both α-2,3- and α-2,6-linked sialic acids with α-2,3 linkage being more abundant. IDV strains replicated to high titers in these cells, while influenza A and B viruses exhibited moderate to low titers, with influenza C virus replication not detected. These findings suggest that bovine primary airway epithelial cells can be utilized to model infection biology and pathophysiology of IDV and other respiratory pathogens.
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Affiliation(s)
- Tirth Uprety
- M. H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Chithra C Sreenivasan
- M. H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Shaurav Bhattarai
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA
| | - Dan Wang
- M. H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Radhey S Kaushik
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA.
| | - Feng Li
- M. H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA.
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Gray GC, Robie ER, Studstill CJ, Nunn CL. Mitigating Future Respiratory Virus Pandemics: New Threats and Approaches to Consider. Viruses 2021; 13:637. [PMID: 33917745 PMCID: PMC8068197 DOI: 10.3390/v13040637] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/01/2021] [Accepted: 04/06/2021] [Indexed: 12/12/2022] Open
Abstract
Despite many recent efforts to predict and control emerging infectious disease threats to humans, we failed to anticipate the zoonotic viruses which led to pandemics in 2009 and 2020. The morbidity, mortality, and economic costs of these pandemics have been staggering. We desperately need a more targeted, cost-efficient, and sustainable strategy to detect and mitigate future zoonotic respiratory virus threats. Evidence suggests that the transition from an animal virus to a human pathogen is incremental and requires a considerable number of spillover events and considerable time before a pandemic variant emerges. This evolutionary view argues for the refocusing of public health resources on novel respiratory virus surveillance at human-animal interfaces in geographical hotspots for emerging infectious diseases. Where human-animal interface surveillance is not possible, a secondary high-yield, cost-efficient strategy is to conduct novel respiratory virus surveillance among pneumonia patients in these same hotspots. When novel pathogens are discovered, they must be quickly assessed for their human risk and, if indicated, mitigation strategies initiated. In this review, we discuss the most common respiratory virus threats, current efforts at early emerging pathogen detection, and propose and defend new molecular pathogen discovery strategies with the goal of preempting future pandemics.
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Affiliation(s)
- Gregory C. Gray
- Division of Infectious Diseases, Duke University School of Medicine, Durham, NC 27710, USA; (E.R.R.); (C.J.S.)
- Duke Global Health Institute, Duke University, Durham, NC 27710, USA;
- Emerging Infectious Disease Program, Duke-NUS Medical School, Singapore 169856, Singapore
- Global Health Center, Duke Kunshan University, Kunshan 215316, China
| | - Emily R. Robie
- Division of Infectious Diseases, Duke University School of Medicine, Durham, NC 27710, USA; (E.R.R.); (C.J.S.)
- Duke Global Health Institute, Duke University, Durham, NC 27710, USA;
| | - Caleb J. Studstill
- Division of Infectious Diseases, Duke University School of Medicine, Durham, NC 27710, USA; (E.R.R.); (C.J.S.)
- Duke Global Health Institute, Duke University, Durham, NC 27710, USA;
| | - Charles L. Nunn
- Duke Global Health Institute, Duke University, Durham, NC 27710, USA;
- Department of Evolutionary Anthropology, Duke University, Durham, NC 27708, USA
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Saegerman C, Gaudino M, Savard C, Broes A, Ariel O, Meyer G, Ducatez MF. Influenza D virus in respiratory disease in Canadian, province of Québec, cattle: Relative importance and evidence of new reassortment between different clades. Transbound Emerg Dis 2021; 69:1227-1245. [PMID: 33764631 DOI: 10.1111/tbed.14085] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 03/16/2021] [Accepted: 03/22/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND Influenza D virus (IDV), a segmented single-stranded negative-sense ribonucleic acid (RNA) virus, belongs to the new Delta influenza virus genus of the Orthomyxoviridae family. Cattle were proposed as the natural reservoir of IDV in which infection was associated with mild-to-moderate respiratory clinical signs (i.e. cough, nasal discharge and dyspnoea). METHODS AND PRINCIPAL FINDINGS In order to investigate the role of IDV in bovine respiratory disease, during the period 2017-2020, 883 nasal or naso-pharyngeal swabs from Canadian cattle with respiratory signs (cough and/or dyspnoea) were tested by (RT-)qPCR for IDV and other major bovine viral (bovine herpesvirus 1, bovine viral diarrhoea virus, bovine respiratory syncytial virus, bovine parainfluenza virus 3 and bovine coronavirus) and bacterial (Mannheimia haemolytica, Pasteurella multocida, Histophilus somni and Mycoplasma bovis) respiratory pathogens. In addition, whole-genome sequencing and phylogenetic analyses were carried out on five IDV-positive samples. The prevalence of IDV RT-qPCR (with cut-off: Cq < 38) at animal level was estimated at 5.32% (95% confidence interval: 3.94-7.02). Positive result of IDV was significantly associated with (RT-)qPCR-positive results for bovine respiratory syncytial virus and Mycoplasma bovis. While phylogenetic analyses indicate that most segments belonged to clade D/660, reassortment between clades D/660 and D/OK were evidenced in four samples collected in 2018-2020. CONCLUSIONS AND SIGNIFICANCE Relative importance of influenza D virus and associated pathogens in bovine respiratory disease of Canadian dairy cattle was established. Whole-genome sequencing demonstrated evidence of reassortment between clades D/660 and D/OK. Both these new pieces of information claim for more surveillance of IDV in cattle production worldwide.
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Affiliation(s)
- Claude Saegerman
- Fundamental and Applied Research for Animal and Health (FARAH) Center, University of Liège, Liège, Belgium
| | | | | | - André Broes
- Biovet Inc., Saint-Hyacinthe, Québec, Canada
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Martinez-Sobrido L, Nogales A. Editorial overview: Virus reverse genetics approaches for the development of preventive and therapeutic vaccines. Curr Opin Virol 2020; 44:iii-iv. [PMID: 33349418 DOI: 10.1016/j.coviro.2020.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Aitor Nogales
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Centro de Investigación en Sanidad Animal (INIA-CISA), 28130 Madrid, Spain
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