And I'm ashamed to say I don't know much about it. DS2(7) hasn't had any vax since MMR at 16 months. He is severely autistic and allergic to a wide variety of foods and other substances. He is also an asthmatic (but is on regular inhaled steroids and has had no bouts at all since Jan 2009).
I'd like some help weighing up the pros and cons. Thought I'd have to do the same thing over the swine flu vax but he was never offered it .
TIA