(CNN) An Israeli flight attendant has slipped into a coma after contracting measles, according to health officials.
The 43-year-old woman has encephalitis, or inflammation of the brain, a well-known and potentially deadly complication of the virus. She was otherwise healthy before getting measles.
“She’s been in a deep coma for 10 days, and we’re now just hoping for the best,” said Dr. Itamar Grotto, associate director general of Israel’s Ministry of Health.
The flight attendant, who works for El Al, the Israeli national airline, might have contracted the virus in New York, in Israel or on a flight between the two, Grotto said. Health authorities do not believed that she spread the virus to anyone on the flights.