Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
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?