When my kids were babies,I instinctively knew the vax schedule was insane. How could my 8 lb. baby need the same batch of shots as a 35 lb. toddler? How did this make any sense? my docs were honest with me and explained it's set up to 'catch' all kids,as they figure parents just stop caring about their kids health as they get older.
So I did my homework,and made my decisions. I decided the schedule of vaxes,and also the benefit/risk ratio of each. Some,I decided weren't worth the risks involved,others seemed to be worth it.
Why did my tiny newborn need to be vaxed for a sexually transmitted disease,which neither of his parents had? (so he wouldn't go out,find a girl and get the disease in his teens,BTW)
My point is this, there are many experts out there to *help* us make decisions for our families. But ultimately,it's up to parents to research,and decide what to do.
Honestly,there is evidence on the pro and con side - facts are that even with full vaxed populations the same old diseases still show up regularly. The shots aren't 100%- and some are not worth the risks and questions,while I believe others are.
(with my kids, the one who didn't get DTP shots after his 1st BAD reaction,didn't get whooping cough when it swept through,conversely,2nd child HAD been vaxed,and he caught it.go figure.

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I made darn sure the MMR was given well after the 2nd birthday though,I was wary of the party line" it seems to spontaneously occur in 18 month old kids,which is coincidentaly the age for the shot"........more like close to 3 years old