BLACKWELL: A Church of Scientology cruise ship is clear to head home after one of the crew members tested positive for measles. The Free Winds ship was under quarantine in St. Lucia; it will now head back to its homeport of Curasol for doctors to further evaluate the nearly 300 people onboard. The St. Lucia's health officials said they provided 100 doses of measles vaccines to people on the ship.</s>PAUL: In tonight's episode of "Chasing Life," Dr. Sanjay Gupta explores the dark, desolate, chilly regions of northern Norway to find out how Norwegians have unlocked the secret to happiness.</s>UNIDENTIFIED MALE: What do you see?</s>UNIDENTIFIED FEMALE: A lot of sea urchins and some different shells. I want to check as many organism as possible.</s>UNIDENTIFIED MALE: I'm going to be actually of some help here, put on my gloves and put my surgical skills to use. Very gelatinous. What do you think, you want smaller?</s>UNIDENTIFIED FEMALE: We can take that, but you can also make the next one smaller. We will make several, I think.</s>UNIDENTIFIED MALE: If we can harness their unique chemistry, these sea creatures could provide new sources of medicine, everything from vaccines to HIV treatments and anti-cancer drugs.</s>UNIDENTIFIED MALE: The amazing thing, you have no idea what you are going to find, could be the plant. It could be the microorganisms inside, whatever it may be but there could be great medicine for humanity.</s>UNIDENTIFIED FEMALE: Definitely.</s>PAUL: Watch "Chasing Life" with Dr. Sanjay Gupta. It is tonight at 9:00 p. m. Eastern only here on</s>CNN. BLACKWELL: A Boeing 737 slides off the runway and plunges into the St. John's River in Jacksonville, Florida; 143 people on board have been rescued. We have more after this breaking news after a break.
Cruise Ship Crewmember Tests Positive for Measles.