Xia Xian, a virologist who was formerly a project scientist at the University of California, Los Angeles, has left the United States to take up a position studying highly pathogenic viruses – which have a strong ability to cause severe disease or illness in infected hosts – at his alma mater, Wuhan University, in central China. According to the university’s website, Xia became a full-time research professor and principal investigator in November at the College of Life Sciences and the State Key...