From a U.S. federal court, comes the latest inconvenient truth for antivaxxers to deal with:

A federal court ruled Friday that the evidence supporting an alleged causal link between autism and a mercury-containing preservative in vaccines is unpersuasive, and that the families of children diagnosed with autism are not entitled to compensation.

Special masters of the U.S. Court of Federal Claims released more than 600 pages of findings after reviewing three test cases and finding all the claims wanting.

“Petitioners’ theory of vaccine-related causation is scientifically unsupportable,” wrote Special Master Patricia Campbell-Smith in her conclusion about William P. Mead, whose parents, George and Victoria Mead, had brought one of the suits.

“In the absence of a sound medical theory causally connecting William’s received vaccines to his autistic condition, the undersigned cannot find the proposed sequence of cause and effect to be logical or temporally appropriate. Having failed to satisfy their burden of proof under the articulated legal standard, petitioners cannot prevail on their claim of vaccine-related causation.”

No worries, I’m sure Arianna Huffington will give Jim Carrey and Jenny McCarthy a chance to lie away any of the least latest damnation of their absurd and dangerous theories. For the rest of us, the evidence against it is completely overwhelming. As Bad Astronomer Phil Plait wrote:

These are people who (very incorrectly) think that vaccines are linked to autism. It has been shown, conclusively, that no such link exists. Every time an antivaxxer is shown this data, they move the goalposts, claiming it’s some other vaccine feature causing autism, or cite outdated and flawed studies. The problem (for them) is, you can show that the number of autism cases diagnosed is totally unrelated to vaccines. They deny this, they spin, they distract, but in the end this simple fact proves them wrong.

We need vaccines. We have stopped smallpox cold with vaccines. Rubella, measles, and pertussis can be stopped. Where antivaxxers have sown distrust in vaccines, these diseases have been making a comeback, and kids have died.

Whatever the reasons behind the Antivaxxer movement, it must stop. It’s based on lies and there is nothing noble about pursuing false logic. Vaccines don’t cause autism.

–WKW

Crossposted at William K. Wolfrum Chronicles