[Stentor]

A friend of mine is a nurse, got her flu shot then promptly came down with the flu.

"Incubation period is the time elapsed between exposure to a disease organism and when symptoms and signs are apparent. The period may be as short as hours to as long as thirty years in the case of variant Creutzfeldt-Jakob disease (mad cow disease)."

[facedown]

...in the case of variant Creutzfeldt-Jakob disease (mad cow disease)."

Malarky.