Sweeping generalizations mean nothing and are used as a red herring to distract.
Here's an example. It's the first link from the link above.
1. "BCHealth Files: Typhoid Vaccine,"
""Who should not get the oral vaccine? Speak with a doctor or nurse if you have: had a life-threatening reaction to a previous dose of typhoid vaccine, or any component of the vaccine including aspartame." "
No Author, British Columbia Ministry of Health -- 10/1/2007