Eastern equine encephalitis virus--old enemy, new threat.

n engl j med 368;18 nejm.org may 2, 2013 1670 missible, whereas discrimination on other grounds is only morally blameworthy, but these cases are newsworthy precisely because they are so unexpected from a profession with a strong tradition of helping people in need and rejecting the stigmas that may bias other members of society. Fortunately, most physicians take this tradition and their professional obligations seriously, and overt discrimination is rare. Evidence suggests, however, that even medical professionals are susceptible to implicit biases based on race, social class, sex, weight, and myriad other factors that may affect the care they provide.5 Thus, although we should condemn all types of invidious discrimination against patients, we should be particularly vigilant against the sort of subtle discrimination that can fly under the radar.