Dr. Lucky Tran 
The “problem” with vaccines? They so effective at preventing deaths that they create generations of people that question whether disease was a problem in the first place because they have never experienced the horrors of a world without vaccines.
Dianora (Diane Bruce)@luckytran Anyone doing any genealogy knows the horrors. Many young children died in infancy.
Lenora@Dianora @luckytran a trip to old cemeteries make it painfully obvious why couples had big families. They hoped some of their kids would make it to adulthood