My thoughts are this is all part of a bigger trend in US culture right now where everybody thinks they are smart enough to "do their own research" and nobody wants to trust experts. This all goes back to a fear of the "intellectual elite".
Stay at home home Karyn apparently thinks she knows as much about vaccinations and diseases because she has 4 kids as Dr. Bradley Ackerson, who has 20 years experience as a pediatric infectious disease specialist.
Jim Bob down the street can explain to you why the climate isn't changing because he's been shoveling snow for 40 years. It doesn't matter what Dr. Phil D. Jones, former director of the Climatic Research Unit at the University of East Anglia, has to say. Dr. Jones hasn't lived in this city for 40 years. It snows all the time!
And because "everybody can do their own research", everybody will of course understand what they read. I mean, just look at the people who argue that the MMR vaccine doesn't really work because the vaccine only gives 10 years of immunity. These people don't bother to read that a second dose, which is required, boosts that immunity to permanent -- either because that information doesn't follow their agenda or they don't understand the evidence.
There's nothing to discuss here, Karyn. You don't know anything. You think you do, but you don't. Having 4 kids doesn't give you a medical doctorate.