A truly fucked up one.
I don't beleive for a second that ds3 would be NT had we not given MMR Bbut my gut says AS like his sibs and every other asd person in our family- a heck of a lot. there are three things that could ahve caused the regression in my mind, all with medical links:
Little ds1 took him from his cot and dropped him fron a bunk aged about 2, we took his to hospital but he was given all clear- did he sustain head injuries?
He was supposed to be on a casein free diet, ds1 and I (and subsequently ds4) all have casein intolerances that caused temporary FTT as newborns; years later I found we'd been prescribed the wrong formula, one that DID contain casein.
MMr.
All, a mix, none who knows. Nobody, that's who.
When ds4 was due his MMR we made the decision to give measles as Wales was having quite an outbreak but we cried in true fear that day and ahd to cancel; in the end DH took him as I physically could not, I wanted him to have the jab but... i'd give him rubella like a shot if we'd had the cash and mumps at puberty if it were available.
He may have MMR at school age; through lack of cash for separates and the sheer harassment we got from school with ds4 more than actively wanting MMR.
It bothers me that he has not had rubella, but even my Mum- whose baby had to be terminated from rubella damage (my brother) after she had already had a stonking 4 stillbirths- gets it.
It bothers me that he's vulnerable to rubella and to a lesser extent mumps and that he could pass it on to otehr people but ultimately if he was vaccinated and regressed, knowing what I do after ds3's regresion, i don't think I ciuld live with myself and I have to be able to do that, it's Dh and I who have to do the work, not anybody lecturing me across a wifi connection.