Degenerative Cubism afflicts 12% of Spanish cattle. If the disease were ever to become airborne, it’s estimated that all beef cattle in the country would be little more than a few lines leaving the impression of cattle within one month.
A realism vaccine was developed in 1994 but has occasional surrealist side effects, turning 2% of cattle injected into two arguing mimes and a waffle.
This sounds like something Douglas Adams would make