Influenza Virus Pathogenesis and Vaccines

A special issue of Pathogens (ISSN 2076-0817). This special issue belongs to the section "Vaccines and Therapeutic Developments".

Deadline for manuscript submissions: closed (15 May 2024) | Viewed by 1331

Special Issue Editors


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Guest Editor
Centre for Inflammation Research, The Queen’s Medical Research Institute, The University of Edinburgh, Edinburgh, UK
Interests: influenza virus; airway epithelial cells; innate immunity; lung repair

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Guest Editor
The Roslin Institute, The University of Edinburgh, Edinburgh, UK
Interests: influenza virus; innate immunity; restriction factors; transmission

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Guest Editor
Department of Medicine and Sciences of Aging, University of G. d’Annunzio Chieti and Pescara, Chieti, Italy
Interests: immunoglobulins; B and T lymphocyte subpopulations; HIV infection; cytokines; autoimmunity; allergic diseases; inflammation
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Special Issue Information

Dear Colleagues,

Influenza A viruses (IAVs) are important respiratory pathogens globally. They represent an ever-present threat to human and animal populations, including pigs, birds, and horses. Infection by IAV can have devastating consequences for human and animal health. Variability between IAVs exists in terms of host range or disease severity within the same species. In susceptible hosts, influenza viruses can cause extensive damage to the lung tissue, a result of both direct viral action and exuberant immune responses. Surviving infection requires rapid and coordinated immune and tissue repair programs, ensuring the rapid control of infection and replacement of the damaged tissue. If these programs are not well regulated, chronic lung defects may persist despite viral clearance and apparent clinical recovery. Vaccines against IAVs exist, but their efficacy is often hampered by viral evolution (antigenic shift and drift) and cross-species jumps. Understanding what determines IAV host range and disease severity is crucial to developing vaccines that protect human and animal health against evolving or newly arising IAV strains. The aim of this Special Issue is to publish original papers and reviews on any aspect of influenza virus pathogenesis that not only advances the knowledge of IAV infection biology, but also helps us to better understand the host and viral factors that permit IAV infection and govern disease severity and vaccine efficacy. The knowledge collected here will be an essential steppingstone leading to the development of more efficient vaccines in the future.

Dr. Caroline Chauche
Dr. Rute Maria Pinto
Prof. Dr. Roberto Paganelli
Guest Editors

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Keywords

  • influenza virus
  • pathogenesis
  • disease severity
  • viral determinants
  • immune responses

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Published Papers (1 paper)

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Research

12 pages, 1028 KiB  
Article
Susceptibility of Synanthropic Rodents (Mus musculus, Rattus norvegicus and Rattus rattus) to H5N1 Subtype High Pathogenicity Avian Influenza Viruses
by Tatsufumi Usui, Yukiko Uno, Kazuyuki Tanaka, Tsutomu Tanikawa and Tsuyoshi Yamaguchi
Pathogens 2024, 13(9), 764; https://doi.org/10.3390/pathogens13090764 - 5 Sep 2024
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Abstract
Synanthropic wild rodents associated with agricultural operations may represent a risk path for transmission of high pathogenicity avian influenza viruses (HPAIVs) from wild birds to poultry birds. However, their susceptibility to HPAIVs remains unclear. In the present study, house mice (Mus musculus [...] Read more.
Synanthropic wild rodents associated with agricultural operations may represent a risk path for transmission of high pathogenicity avian influenza viruses (HPAIVs) from wild birds to poultry birds. However, their susceptibility to HPAIVs remains unclear. In the present study, house mice (Mus musculus), brown rats (Rattus norvegicus), and black rats (Rattus rattus) were experimentally exposed to H5N1 subtype HPAIVs to evaluate their vulnerability to infection. After intranasal inoculation with HA clade 2.2 and 2.3.2.1 H5N1 subtype HPAIVs, wild rodents did not show any clinical signs and survived for 10- and 12-day observation periods. Viruses were isolated from oral swabs for several days after inoculation, while little or no virus was detected in their feces or rectal swabs. In euthanized animals at 3 days post-inoculation, HPAIVs were primarily detected in respiratory tract tissues such as the nasal turbinates, trachea, and lungs. Serum HI antibodies were detected in HA clade 2.2 HPAIV-inoculated rodents. These results strongly suggest that synanthropic wild rodents are susceptible to infection of avian-origin H5N1 subtype HPAIVs and contribute to the virus ecosystem as replication-competent hosts. Detection of infectious viruses in oral swabs indicates that wild rodents exposed to HPAIVs could contaminate food, water, and the environment in poultry houses and play roles in the introduction and spread of HPAIVs in farms. Full article
(This article belongs to the Special Issue Influenza Virus Pathogenesis and Vaccines)
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