call about three weeks ago in vietnam. david? >> all right, martha, thank you. of course, we're thinking about all of those sailors tonight. thanks, martha. and when we come back, dr. jen ashton standing by with your questions. if you catch the virus, how long does it last and why do some patients seem to be getting better and then suddenly take a dramatic turn for the worse? and could the virus, could there be a second cycle of this in the u.s.? and tonight, we remember a celebrity chef who has now died from this, in a moment. celebrity chef who has now died from this, in a moment. but if yg fish oil supplements you should know they are not fda approved... ...they may have saturated fat and may even raise bad cholesterol. to treat very high triglycerides, discover the science of prescription vascepa. proven in multiple clinical trials, vascepa, along with diet, is the only prescription epa treatment, approved by the fda to lower very high triglycerides by 33%, without raising bad cholesterol. look. it's clear, there's only one prescription epa vascepa.