Bilag I til direktiv 82/894/EØF, der indeholder en liste over sygdomme, hvis forekomst skal anmeldes til Kommissionen og de øvrige medlemsstater, omfatter af sygdomme hos landdyr hesteencephalitis uden at sondre mellem de forskellige former.
Annex I to Directive 82/894/EEC listing the diseases of which the occurrence must be notified to the Commission and the other Member States, includes equine encephalomyelitis, among the diseases affecting terrestrial animals, without distinguishing its different types.