Медицина и здравоохранение во всем своем великолепии
Anti-vaccine activists, false rumors and serious missteps by some vaccine companies have all contributed to the global rebound. Jet travel has fueled the spread, as it has with viruses like MERS and Zika. So have “diaspora networks,” said Dr. Heidi J. Larson, director of the Vaccine Confidence Project at the London School of Hygiene and Tropical Medicine — people connected by culture around the world who share beliefs, and sometimes pathogens.
По ссылке объясняется, что это за такие диаспоры (навел piggymouse).