They also understand that the criticism over CDC’s own role in this controversy begins with the escalation in the childhood immunization program that started with the introduction of new vaccines for Haemophilus influenza B (Hib) and hepatitis B in 1990 and 91, respectively. And they certainly understand that an honest investigation of the effect of their own policies must include a comparison of autism rates for children born in 1989 or earlier with those born in 1991 or later.

So what has the CDC done with ADDM? They left the investigation of children born in the 1980s out of the ADDM entirely!

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