New calculations suggest children today can be exposed to more than half the mercury that was in vaccines in the 1990s, even though manufacturers began phasing it out in 1999.
Adjusted for a child's body weight at the time of the shots, there's virtually no reduction at all, according to this analysis.
The source: Flu vaccines, which have been recommended for millions more kids over 6 months old and pregnant women in the past few years. Most of those shots still contain the mercury-based preservative called thimerosal that some fear is behind a huge rise in autism diagnoses.
The Age of Autism: Mercury creeps back in