1946-47 Iceland outbreak

"Mixed epidemics of poliomyelitis and a disease resembling poliomyelitis with the character of the Akureyri Disease."

Comparison with 1948-49 Akureyri outbreak
Sigurdsson et al. 1950 that this 1946-1947 outbreak of poliomyelitis may have had the same cause as the 1948-1949 Akureyri outbreak, but are uncertain.