
NASSAU, Bahamas (CNN) - John Travolta spoke publicly for the first time Wednesday about his desperate efforts to save his teenage son's life after he suffered a seizure at the family's vacation home in the Bahamas in January.
[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/CRIME/09/23/travolta.testimony/art.travolta.cnn.jpg caption="John Travolta and Kelly Preston leave a courthouse in the Bahamas Wednesday."]
Travolta testified in the criminal trial of a paramedic and former Bahamian senator, who are charged with a plot allegedly designed to extort $25 million from the actor.
Travolta and his wife, actress Kelly Preston, have remained secluded for most of this year. Friends have described their deep grief over the death of 16-year-old Jett Travolta.
Jett was found unresponsive by a nanny at the home on the island of Grand Bahamas, where the family was spending a New Year's holiday, he said.
A family friend with a medical background helped in urgent efforts to revive Jett, Travolta said.
"We continued CPR and my wife was holding his head," said Travolta. His wife sat in the Nassau courtroom, sometimes crying as she watched the testimony.
(CNN) - A vaccine to prevent HIV infection has shown modest results for the first time, researchers have found.
[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/HEALTH/09/24/hiv.vaccine/art.vaccine.gi.jpg caption="Researchers found those who received the vaccine combination were 31 percent less likely to contract HIV."]
In what is being called the world's largest HIV vaccine trial ever, researchers found that people who received a series of inoculations of a prime vaccine and booster vaccine were 31 percent less likely to get HIV, compared with those on a placebo.
"Before this study, it was thought vaccine for HIV is not possible," Col. Jerome Kim, who is the HIV vaccines product manager for the U.S. Army, told CNN.
Watch Dr. Gupta explain the study ![]()
Kim emphasized that the level of efficacy was modest, but given the failures of previous HIV vaccine trials, "yesterday we would have thought an HIV vaccine wasn't possible."
He called the results from the trial an important first step that will help researchers work toward a more effective vaccine.
Here are the big stories on the agenda today:

