The CDC schedule is app 23 vaccination from birth to 15 mos. Yeah, it's increased a few thousand % since when I was a kid.
I'm not an anti-vaccine guy but I do have a kid with food allergies and I'm aware that food allergies in kids have exploded over the past 25 years. As in going from almost none to every class having several kids with food allergies. Autism is also way, way higher. In both cases doctors shrug and say "wish I knew why". No wonder parents are trying to figure it out on their own.