Equine influenza

Nature:

Equine influenza (horse flu) is the disease caused by strains of influenza A that are enzootic in horse species. Equine influenza occurs globally, previously caused by two main strains of virus: equine-1 (H7N7) and equine-2 (H3N8). The World Organisation for Animal Health now considers H7N7 strains likely to be extinct since these strains have not been isolated for over 20 years. Predominant international circulating H3N8 strains are Florida sublineage of the American lineage; clade 1 predominates in the Americas and clade 2 in Europe. (Elton and Cullinane, 2013; Paillot, 2014; Slater et al., 2013). The disease has a nearly 100% infection rate in an unvaccinated horse population with no prior exposure to the virus.

While equine influenza is historically not known to affect humans, impacts of past outbreaks have been devastating due to the economic reliance on horses for communication (postal service), military (cavalry), and general transportation. In modern times the ramifications of equine influenza are most clear in the horse-racing industry.

Broader Problems:

Animal influenza
Respiratory diseases of horses

Subject(s):

Birds, Mammals → Horses
Medicine → Specific diseases

Related UN Sustainable Development Goals:

Problem Type:

G: Very specific problems

Date of last update

04.10.2020 – 22:48 CEST

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Equine influenza

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