can't go 100% on that but some sure have been and with devastating effect. your point about "today's" is a very good one. the manuf has been perverted with the genetic attacking components. those likely added for profit or pop eradication. BOTH? there are diseases that immunity to is a huge benefit to humanity plague,polio,yellow fever,small pox to name a few. with the murderous corruption of the whole process by-we know who-the issue becomes Russian roulette. do you gamble on getting the disease or gamble on a drug that is not proven safe and shown to be damaging in many,many cases?
i'm too old for it to matter,as are many of us. there are still millions of little ones out there at risk from a 2 edged sword.
Look up Dr Leonard Horrowitz. You have to dig real deep cause they have made great strides in burying his work.
Not a quack, he was in a position to know how they were developing the vaccines 40+ years ago that intentional or not, were bioweapons.
There is no reason to vaccinate every child for hepatitis B. Also no reason to vaccinate for mumps, measles and chicken pox.
Vaccines are money makers 100 times over for the Medical Industrial Complex.
There is no money in curing people.