If you are as old as me, you also had just about every childhood disease. Mumps, Chicken Pox, Measles, Rubella, Whooping Cough. Until recently, you rarely heard of those diseases anymore. Thanks for vaccines. Now thanks to anti-Vaczers, they're starting to come back. Don't listen to RFK Jr. Thank God they came up with the Polio Vac. in the 1950's That disease was running rampant. Thankfully I never got that. Got the Vac in time. Almost everyone knew someone who got it.