The Daily Rudeness

When you turn 31, the vaccine is safe…like Magic!

Is a fit and healthy 40 something, no smoking, no drinking, equal to a 29 yr old with a double chin whose hobby is drinking? Or does the vaccine know that the person receiving the vaccine is 30 + 1 day old and therefore won’t cause heart problems? How does the vaccine know the age of the recipient? I would like to know more about that technology.