to spread. here's a very important number, 42. 42 days. that's two incubation periods. if you get to 42 days with no new cases, that's when people will say, okay, this outbreak is over. they got to scour the entire country, the surrounding areas, and make sure there are no new cases, and then it's time to pack it up. and still ahead, i'm going to show you how my crew and i stay safe reporting on a story like this one. we're going to give you exclusive look inside what we call our go bag. but up next a live report from perth, australia, got the very latest in the search for missing malaysian airlines flight 370. stay with us. ♪ [ male announcer ] even more impressive than the research this man has at his disposal is how he puts it to work for his clients. morning. morning. thanks for meeting so early. come on in. [ male announcer ] it's how edward jones makes sense of investing. i'll just press this, and you'll save on both. ding! ladies and gentlemen,