Symptoms typically start to appear 8–12 days (range: 7–21 days) after exposure, with rash onset typically occurring around 14 days after exposure. Based on the 7–21 day incubation period for measles, the potential dates of symptom onset for exposed cruise ship passengers range from August 13 through August 27. On August 6, a teenager visiting with her parents from overseas boarded a cruise ship in Vancouver, B.C., that was bound for Alaska. Approximately one week prior to boarding the cruise ship, the patient began experiencing cold-like symptoms while travelling in Thailand, and four days prior to boarding she woke up with a rash (facial), red eyes, and feverishness. Measles is a highly infectious viral respiratory disease that spreads via the airborne route and through direct contact with respiratory secretions. Measles typically starts with a fever, runny nose, cough, and red eyes. The patient remained in medical isolation until August 8 when she was transported to PeaceHealth Ketchikan Medical Center. The patient was discharged from the hospital on August 10. Later that day, the patient was confirmed by polymerase chain reaction (PCR) testing to have been infected with the measles virus. The cruise ship passengers disembarked in Seward on the morning of August 13, and many will be travelling throughout Alaska for a period of time before returning home. Within several hours of boarding the ship, the child was put in medical isolation due to persistence of symptoms and the concern for possible measles. Per the parents, the child had never received the measles, mumps, and rubella (MMR) vaccine. Facebook0TwitterEmailPrintFriendly分享A teenager on a cruise ship in Alaska last week was reported to have the measles according to the Alaska Department of Health and Social Services. While the risk of secondary cases among these passengers is considered to be very low, it is important for healthcare providers to be aware of the possibility of secondary transmission, according to the Department of Health and Social Services.