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Medina-Armenteros Y, Cajado-Carvalho D, das Neves Oliveira R, Apetito Akamatsu M, Lee Ho P. Recent Occurrence, Diversity, and Candidate Vaccine Virus Selection for Pandemic H5N1: Alert Is in the Air. Vaccines (Basel) 2024; 12:1044. [PMID: 39340074 PMCID: PMC11435632 DOI: 10.3390/vaccines12091044] [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: 07/05/2024] [Revised: 08/22/2024] [Accepted: 09/03/2024] [Indexed: 09/30/2024] Open
Abstract
The prevalence of the highly pathogenic avian influenza virus H5N1 in wild birds that migrate all over the world has resulted in the dissemination of this virus across Asia, Europe, Africa, North and South America, the Arctic continent, and Antarctica. So far, H5N1 clade 2.3.4.4.b has reached an almost global distribution, with the exception of Australia and New Zealand for autochthonous cases. H5N1 clade 2.3.4.4.b, derived from the broad-host-range A/Goose/Guangdong/1/96 (H5N1) lineage, has evolved, adapted, and spread to species other than birds, with potential mammal-to-mammal transmission. Many public health agencies consider H5N1 influenza a real pandemic threat. In this sense, we analyzed H5N1 hemagglutinin sequences from recent outbreaks in animals, clinical samples, antigenic prototypes of candidate vaccine viruses, and licensed human vaccines for H5N1 with the aim of shedding light on the development of an H5N1 vaccine suitable for a pandemic response, should one occur in the near future.
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Affiliation(s)
| | | | | | - Milena Apetito Akamatsu
- Centro BioIndustrial, Instituto Butantan and Fundação Butantan, São Paulo 05503-900, SP, Brazil; (Y.M.-A.); (D.C.-C.); (R.d.N.O.)
| | - Paulo Lee Ho
- Centro BioIndustrial, Instituto Butantan and Fundação Butantan, São Paulo 05503-900, SP, Brazil; (Y.M.-A.); (D.C.-C.); (R.d.N.O.)
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Xu Y, Tang L, Gu X, Bo S, Ming L, Ma M, Zhao C, Sun K, Liu Y, He G. Characterization of avian influenza A (H4N2) viruses isolated from wild birds in Shanghai during 2019 to 2021. Poult Sci 2023; 102:102948. [PMID: 37604021 PMCID: PMC10465953 DOI: 10.1016/j.psj.2023.102948] [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: 04/28/2023] [Revised: 07/04/2023] [Accepted: 07/17/2023] [Indexed: 08/23/2023] Open
Abstract
The H4 subtype of avian influenza viruses has been widely distributed among wild birds. During the surveillance of the avian influenza virus in Shanghai from 2019 to 2021, a total of 4,451 samples were collected from wild birds, among which 46 H4 subtypes of avian influenza viruses were identified, accounting for 7.40% of the total positive samples. The H4 subtype viruses have a wide range of hosts, including the spot-billed duck, common teal, and other wild birds in Anseriformes. Among all H4 subtypes, the most abundant are the H4N2 viruses. To clarify the genetic characteristics of H4N2 viruses, the whole genome sequences of 20 H4N2 viruses were analyzed. Phylogenetical analysis showed that all 8 genes of these viruses belonged to the Eurasian lineage and closely clustered with low pathogenic avian influenza viruses from countries along the East Asia-Australia migratory route. However, the PB1 gene of 1 H4N2 virus (NH21920) might provide its internal gene for highly pathogenic avian influenza H5N8 viruses in Korea and Japan. At least 10 genotypes were identified in these viruses, indicating that they underwent multiple complex recombination events. Our study has provided a better epidemiological understanding of the H4N2 viruses in wild birds. Considering the mutational potential, comprehensive surveillance of the H4N2 virus in both poultry and wild birds is imperative.
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Affiliation(s)
- Yuting Xu
- School of Life Science, East China Normal University, Shanghai, China
| | - Ling Tang
- Shanghai Wildlife and Protected Natural Areas Research Center, Shanghai, China
| | - Xiaojun Gu
- Shanghai Landscaping & City Appearance Administrative Bureau, Shanghai, China
| | - Shunqi Bo
- Shanghai Landscaping & City Appearance Administrative Bureau, Shanghai, China
| | - Le Ming
- School of Life Science, East China Normal University, Shanghai, China
| | - Min Ma
- School of Life Science, East China Normal University, Shanghai, China
| | | | - Kaibo Sun
- Shanghai Forestry Station, Shanghai, China
| | - Yuyi Liu
- Shanghai Landscaping & City Appearance Administrative Bureau, Shanghai, China
| | - Guimei He
- School of Life Science, East China Normal University, Shanghai, China; Institute of Eco-Chongming (IEC), East China Normal University, Shanghai, China.
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Carter DL, Link P, Tan G, Stallknecht DE, Poulson RL. Influenza A Viruses in Whistling Ducks (Subfamily Dendrocygninae). Viruses 2021; 13:v13020192. [PMID: 33525360 PMCID: PMC7911599 DOI: 10.3390/v13020192] [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: 12/31/2020] [Revised: 01/25/2021] [Accepted: 01/27/2021] [Indexed: 11/23/2022] Open
Abstract
As compared to other Anseriformes, data related to influenza A virus (IAV) detection and isolation, and IAV antibody detection in whistling ducks (Dendrocygna spp. and Thalassornis leuconotus; subfamily Dendrocygninae) are limited. To better evaluate the potential role of whistling ducks in the epidemiology of IAV, we (1) conducted surveillance for IAV from black-bellied whistling ducks (BBWD, Dendrocygnaautumnalis) sampled in coastal Louisiana, USA, during February 2018 and 2019, and (2) reviewed the published literature and Influenza Resource Database (IRD) that reported results of IAV surveillance of whistling ducks. In the prospective study, from 166 BBWD sampled, one H10N7 IAV was isolated (0.6% prevalence), and overall blocking enzyme-linked immunosorbent assay (bELISA) antibody seroprevalence was 10%. The literature review included publications and data in the IRD from 1984 to 2020 that reported results from nearly 5000 collected samples. For any given collection, the IAV isolation rate never exceeded 5.5%, and seroprevalence estimates ranged from 0 to 42%. Results from our prospective study in Louisiana are consistent with this historic literature; however, although all data consistently demonstrated a low prevalence of infection, the potential role of this species in the epidemiology of IAV should not be totally discounted. In sum, whistling ducks can be infected with IAV, they represent important species on many areas where waterfowl winter, and their distribution across the globe appears to be changing.
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Affiliation(s)
- Deborah L. Carter
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, The University of Georgia, 589 D. W. Brooks Dr., Athens, GA 30602, USA; (D.L.C.); (D.E.S.)
| | - Paul Link
- Louisiana Department of Wildlife and Fisheries, 2000 Quail Drive, Room 436, Baton Rouge, LA 70808, USA;
| | - Gene Tan
- J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA 92037, USA;
- Division of Infectious Diseases, Department of Medicine, University of California, La Jolla, San Diego, CA 92037, USA
| | - David E. Stallknecht
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, The University of Georgia, 589 D. W. Brooks Dr., Athens, GA 30602, USA; (D.L.C.); (D.E.S.)
| | - Rebecca L. Poulson
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, The University of Georgia, 589 D. W. Brooks Dr., Athens, GA 30602, USA; (D.L.C.); (D.E.S.)
- Correspondence:
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Okuya K, Kanazawa N, Kanda T, Kuwahara M, Matsuu A, Horie M, Masatani T, Toda S, Ozawa M. Genetic characterization of an avian H4N6 influenza virus isolated from the Izumi plain, Japan. Microbiol Immunol 2018; 61:513-518. [PMID: 29023947 DOI: 10.1111/1348-0421.12545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 09/18/2017] [Accepted: 09/27/2017] [Indexed: 12/31/2022]
Abstract
An influenza A virus of H4N6 subtype was isolated from the Izumi plain, Japan, in 2013. Genetic analyses revealed that two viral genes (M and NS gene segments) of this isolate were genetically distinct from those of the H4N6 virus isolated from the same place in 2012. Furthermore, three viral genes (PB2, PB1 and M gene segments) of this isolate share high similarity with those of the North American isolates of 2014. These results suggest a high frequency of genetic reassortment of avian influenza viruses in Asian waterfowl and intercontinental movements of avian influenza viruses via migratory waterfowl.
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Affiliation(s)
- Kosuke Okuya
- Joint Faculty of Veterinary Medicine, Laboratory of Animal Hygiene, Kagoshima University, Kagoshima, Kagoshima 890-0065, Japan
| | - Norihiro Kanazawa
- Joint Faculty of Veterinary Medicine, Laboratory of Animal Hygiene, Kagoshima University, Kagoshima, Kagoshima 890-0065, Japan
| | - Takehiro Kanda
- Joint Faculty of Veterinary Medicine, Laboratory of Animal Hygiene, Kagoshima University, Kagoshima, Kagoshima 890-0065, Japan
| | | | - Aya Matsuu
- Transboundary Animal Diseases Research Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Kagoshima 890-0065, Japan.,United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Yamaguchi 753-8515, Japan
| | - Masayuki Horie
- Transboundary Animal Diseases Research Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Kagoshima 890-0065, Japan.,United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Yamaguchi 753-8515, Japan
| | - Tatsunori Masatani
- Transboundary Animal Diseases Research Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Kagoshima 890-0065, Japan.,United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Yamaguchi 753-8515, Japan
| | - Shigehisa Toda
- Kagoshima Crane Conservation Committee, Izumi, Kagoshima 899-0208, Japan
| | - Makoto Ozawa
- Joint Faculty of Veterinary Medicine, Laboratory of Animal Hygiene, Kagoshima University, Kagoshima, Kagoshima 890-0065, Japan.,Transboundary Animal Diseases Research Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Kagoshima 890-0065, Japan.,United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Yamaguchi 753-8515, Japan
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Laamiri N, Aouini R, Marnissi B, Ghram A, Hmila I. A multiplex real-time RT-PCR for simultaneous detection of four most common avian respiratory viruses. Virology 2017; 515:29-37. [PMID: 29223788 DOI: 10.1016/j.virol.2017.11.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 11/26/2017] [Accepted: 11/27/2017] [Indexed: 12/30/2022]
Abstract
A one-step multiplex real-time reverse transcription-PCR (rRT-PCR) assay was developed for simultaneous detection and quantification of four avian respiratory viruses: avian influenza virus (AIV), infectious bronchitis virus (IBV), Newcastle disease virus (NDV) and infectious laryngotracheitis virus (ILTV). In comparison with the singleplex rRT-PCR, the specificity, the sensitivity and the reproducibility of the new assay were evaluated and validated using 70 clinical samples. The optimal cutoff point, the corresponding limit of quantification (LoQ) and the limit of detection (LoD) were statistical established based on receiver operating characteristic (ROC) curve analysis. The results showed that the multiplex assay presents higher sensitivity and specificity. Correlation coefficients (R2) and amplification efficiencies (E) of all singleplex and multiplex rRT-PCR reactions are within the acceptable range. The 95% LoDs of multiplex assay were in the range [3-19] copies genomic/ µl, and its corresponding cutoff cycles were in the range [34.16-36.59]. No competitive inhibition for the detection of the four targets and no specific amplification or cross reactivity with other tested viruses was observed. Excellent results were attained in the inter-assay and intra-assay reproducibility evaluation. All identified samples by the multiplex rRT-PCR assay proved to be 100% concordant with the results of the singleplex assays. The results achieved showed that the multiplex assay is very suitable as a routine laboratory test for rapid and specific detection and quantification of co-infections in field samples.
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Affiliation(s)
- Nacira Laamiri
- University Tunis El Manar, Institut Pasteur de Tunis, Laboratory of Epidemiology and Veterinary Microbiology, 13 Place Pasteur, 1002 Tunis-Belvedere, Tunisia.; University of Carthage, Faculty of Sciences Bizerte, 7021 Zarzouna Bizerte, Tunisia.
| | - Rim Aouini
- University Tunis El Manar, Institut Pasteur de Tunis, Laboratory of Epidemiology and Veterinary Microbiology, 13 Place Pasteur, 1002 Tunis-Belvedere, Tunisia.; University of Carthage, Faculty of Sciences Bizerte, 7021 Zarzouna Bizerte, Tunisia
| | - Boutheina Marnissi
- University Tunis El Manar, Institut Pasteur de Tunis, Laboratory of Epidemiology and Veterinary Microbiology, 13 Place Pasteur, 1002 Tunis-Belvedere, Tunisia
| | - Abdeljelil Ghram
- University Tunis El Manar, Institut Pasteur de Tunis, Laboratory of Epidemiology and Veterinary Microbiology, 13 Place Pasteur, 1002 Tunis-Belvedere, Tunisia
| | - Issam Hmila
- University Tunis El Manar, Institut Pasteur de Tunis, Laboratory of Epidemiology and Veterinary Microbiology, 13 Place Pasteur, 1002 Tunis-Belvedere, Tunisia
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Lack of Detection of Avian Influenza, Newcastle Disease, and West Nile Viruses in Wild Birds of Northeastern Brazil. J Wildl Dis 2017; 54:422-425. [PMID: 29148889 DOI: 10.7589/2017-09-218] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We tested 529 wild birds captured in northeastern Brazil for infection by avian influenza, Newcastle disease, and West Nile. Viruses were not detected by real-time PCR with the exception of one Tropical Gnatcatcher ( Polioptila plumbea) positive for influenza virus, but this could not be confirmed by viral isolation or gene sequencing.
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