Any age where you would notice the child becoming autistic. Normally autism is identified around 4-6 years old. Vaccines are usually finished before then.
I’ll try to ask them for more info the next time I get a chance. I really don’t have any idea about ages for vaccinations now. I was born in ‘44 and looking back it seems as if I were always getting some kind of vaccination from age six onward. The Salk polio vaccine was given to all of us at school, same with Smallpox and I can’t remember what else, there was a tiny clinic that we used to walk to about two hundred yards from the school. I went straight from high school into the Navy and was given so many shots just before and just after my eighteenth birthday that I felt like a pin cushion. I couldn’t begin to recall what those all were. I don’t know if any of them affected my mental functioning, I don’t recall ever being normal to begin with. My company commander in boot camp assured all of us that we were idiots and would never have sense enough to pour water out of a boot so we might as well learn to live with that condition.