We ran every test on her. There had to be something underlying that would make her so vulnerable. And we found nothing.

Michael Tarr, in Nicholas Kristof, “Life and Death in the ‘Hot Zone’”

The virus is as free as the wind. It does whatever it wants.

Pietro Brambillasca, in Helen Ouyang, “I’m an E.R. Doctor in New York. None of Us Will Ever Be the Same.”