Inside the plague research labs at the heart of a Russian mystery

MOSCOW - Nearly two weeks after a 28-year-old researcher died from a mysterious infection while working in a Russian plague research laboratory, health officials around the world are still waiting for answers.Darya Shipilova, a lab worker at the Irkutsk Anti-Plague Research Institute, was initially reported to have contracted pneumonic plague, raising concerns about the kinds of research being conducted at the facility and the safety measures employed there.