Oklahoma has its first confirmed measles case since 1997, state health officials reported Friday, as an outbreak largely linked to Disneyland has now infected nearly 180 people.

The ill patient, in Stillwater, is an international traveler to Oklahoma and the spouse of an Oklahoma State University student who lives off campus.

Since Jan. 1, 178 people from 17 states and the District of Columbia are reported to have been diagnosed with measles, according to the Centers for Disease Control and Prevention. Nearly three-quarters of those cases are linked to exposures at Southern California’s Disneyland park.