[troutman]

An Epidemic of Fear: How Panicked Parents Skipping Shots Endangers Us All

http://www.wired.com/magazine/2009/10/ff_waronscience

This isn’t a religious dispute, like the debate over creationism and intelligent design. It’s a challenge to traditional science that crosses party, class, and religious lines. It is partly a reaction to Big Pharma’s blunders and PR missteps, from Vioxx to illegal marketing ploys, which have encouraged a distrust of experts. It is also, ironically, a product of the era of instant communication and easy access to information. The doubters and deniers are empowered by the Internet (online, nobody knows you’re not a doctor) and helped by the mainstream media, which has an interest in pumping up bad science to create a “debate” where there should be none.

Perceived risk — our changing relationship to it and our increasing intolerance of it — is at the crux of vaccine safety concerns, not to mention related fears of pesticides, genetically modified food, and cloning. Sharon Kaufman, a medical anthropologist at UC San Francisco, observes that our concept of risk has evolved from an external threat that’s out of our control (think: statistical probability of a plane crash) to something that can be managed and controlled if we just make the right decisions (eat less fat and you’ll live longer). Improved diagnostic tests, a change in consumer awareness, an aging society determined to stay youthful — all have contributed to the growing perception that risk (of death, illness, accident) is our responsibility to reduce or eliminate. In the old order, risk management was in the hands of your doctor — or God. Under the new dispensation, it’s all up to you. What are the odds that your child will be autistic? It’s your job to manage them, so get thee to the Internet, and fast.

The result is that science must somehow prove a negative — that vaccines don’t cause autism — which is not how science typically works. Edward Jenner invented vaccination in 1796 with his smallpox inoculation; it would be 100 years before science, such as it was, understood why the vaccine worked, and it would be even longer before the specific cause of smallpox could be singled out. Until the cause of autism is discovered, scientists can establish only that vaccines are safe — and that threshold has already been met.