House Cat Flu
Wikisimpsons - The Simpsons Wiki
House Cat Flu is a deadly disease meant to force people to watch TV in order to make more money for TV companies.
History
It was first tested on the NBC representative and he died a horrible, painful death. After it was announced, people were frightened of their cats and even went to extremes of burning all stuff the cat touched. However, a vaccination was announced and people went to get that instead.
It is unknown what happened to the flu afterwards or whether anyone found out what caused it.