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The first woman to head Paris's prestigious Institut Pasteur, Alice Dautry inherited an ugly mess. One year into the job, she has already succeeded in getting the center back on track.
Spooked by reports that vaccines might cause diseases such as autism, many parents choose not to vaccinate their kids. But when their decision endangers others, asks Virginia Hughes, should the government step in?
In a roomful of stuffy diplomats, Stephen Lewis stands out for his powerful rhetoric and punchy humor. More than once, his habit for speaking uncomfortable truths has shamed governments into action.
DNA is often the most incriminating evidence in a courtroom, but sloppy analysis has sent dozens of innocent people to prison. Alisa Opar reports on the efforts to lock down error-free tests.