Equine Influenza 2023

Dear Colleagues,

Equine influenza virus (EIV) is one of the most important pathogens of the horse. While equine influenza virus from the H7N7 subtype is no longer circulating, the H3N8 subtype, first isolated in the 1960s, still represents a significant threat to horse populations. Despite long-lasting surveillance efforts and the availability of numerous vaccines, the active circulation of equine influenza virus worldwide continues to cause outbreaks and disrupt the equine industry on a regular basis. For example, several hundred equine influenza outbreaks were reported between 2018 and 2019, leading to horse race disruptions and equine influenza vaccination requirement modifications in numerous European countries. In 2022 and now 2023, a surge in equine influenza outbreaks is occurring. While good equine influenza vaccine coverage may mitigate the spread, size, and impact of the disease, it is clear that all actors of the equine industry have a role to play in order to improve the prevention and protection of horses and meet the challenges associated with this pathogen.

This Special Issue aims to gather reviews and original research articles to explore our understanding of equine influenza. The objective of the issue is to provide an overview of the virus and its disease, from its epidemiology, evolution, and pathogenicity, to the efficacy and effectiveness of current equine influenza vaccines and prevention strategies, and finally, about its importance in terms of welfare and economic impact.

Kind Regards.

Dr. Stephane Pronost
Dr. Gang Lu
Dr. Romain Paillot
Guest Editors

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