salt lake city

Zika wasn't even on Dr. Sankar Swaminathan's mind when he first examined a severely ill 73-year-old man in a Salt Lake City hospital in June. The patient had just returned from a visit to Mexico when he suddenly fell violently ill.

"We were not thinking about Zika at all because Zika usually does not cause severe illness, in fact it almost never does," says Swaminathan, chief of the division of infectious diseases at the University of Utah.