So far, four horses have died and 17 have been confirmed infected with the equine herpes virus (EHV-1), also known as the abortion virus, which spread during the international jumping tour in Valencia.
During the competition, hundreds of horses stood under the same roof - which is not an optimal solution from an infection control point of view, according to Andrea Barth, operations manager at the Swedish Equestrian Federation.
"Becomes like a giant kindergarten"
- 150 horses stand under the same roof and exchange air with each other all the time.
Instead, one would have sections with eight - ten in each.
Then a section could have been infected but not all horses that are under the same roof.
It becomes like a giant kindergarten where everyone breathes the same air and stands close to each other.
And it is completely inappropriate from an infection control point of view, says Barth at the press conference.
- I am completely convinced that we will need to revise how we work in the future, says Peter Kallings, the Swedish Equestrian Federation's federal veterinarian.
32 Swedish horses are currently in Valencia.
Half of them have had symptoms - and the situation is critical.
But the horses that came home to Sweden again have not had any symptoms of illness.