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CBS News reports that as Washington state confronts a measles outbreak which has sickened at least 56 people, "hundreds rallied to preserve their right not to vaccinate their children."

They packed a public hearing for a new bill making it harder for families to opt out of vaccination requirements, reports The Washington Post: An estimated 700 people, most of them opposed to stricter requirements, lined up before dawn in the cold, toting strollers and hand-lettered signs, to sit in the hearing.... The Pacific Northwest is home to some of the nation's most vocal and organized anti-vaccination activists. That movement has helped drive down child immunizations in Washington, as well as in neighboring Oregon and Idaho, to some of the lowest rates in the country, with as many as 10.5 percent of kindergartners statewide in Idaho unvaccinated for measles. That is almost double the median rate nationally....

One activist who spoke Friday, Mary Holland, who teaches at New York University law school and said her son has a vaccine-related injury, warned lawmakers that if the bill passes, many vaccine opponents will "move out of the state, or go underground, but they will not comply."
The sponsor of a similar bill in Oregon says that anti-vaxxers "have every right to make a bad decision in the health of their child, but that does not give them the right to send an unprotected kid to public school. So if they want to homeschool their kid and keep them out of other environments, that's their decision."

But there are still 17 U.S. states that allow "personal or philosophic exemptions to vaccination requirements," reports the Post, "meaning virtually anyone can opt out." (Though some states are now considering changes.) "The enablers are state legislators in those states, that have allowed themselves to be played," complains Dr. Peter Hotez, a co-director of the Texas Children's Hospital Center for Vaccine Development at Baylor College of Medicine in Houston.

The World Health Organization estimates that measles vaccines have saved over 21 million lives since 2000. But last year in the European region's population of nearly 900 million people, at least 82,600 people contracted measles, reports Reuters. "Of those, 72 cases were fatal."

Robotron23 writes: Coinciding with the midterm elections yesterday were state ballots proposing the legalization of cannabis. All three territories where full legalization was tabled approved the measure, joining Washington state and Colorado. The narrowest vote was that of Alaska at a roughly 52% to 48% margin. Washington D.C. meanwhile saw the vote strongly tipped in favor of legalization, at about 69% to 31% opposed. Oregon passed its measure by a vote of 55% to 45%. Buoyed by the news, advocates of legal cannabis are already contemplating the next round of state ballots in 2016.

Georgetown researcher (and executive dean of Georgetown's medical school) Howard Federoff has taken a "systems" approach to diagnostics for certain chronic diseases. By comparing blood samples taken from patients who subsequently developed Alzheimer's to blood samples after the disease has manifested, Federoff has identified markers and created a blood test that is described as "90 percent accurate" (the BBC article does not delve into the ratio of false positives to false negatives) in predicting whether a currently healthy patient is likely to develop Alzheimer's in the following three years. Understandably, this raises some ethical and practical questions. What would you do differently if this test came back positive for yourself? Or for a parent? Here's the (paywalled) paper, at Nature Medicine.