. >> african nation of like earia will close schools and possibly quarantine communities to stop spreadf ebola. david bigna report open americans being rescued. >> largest reported outbreak of ebola is spreading in africa. u.s. peace corps volunteers have about -- two volunteers ft. group had contact with someone thereat david of the virus. they have not shown symptoms but they're isolated and under observation. >> keith brantly and nancy where bowl are in serious condition and imimproving after diagnosed with ebola while volunteering in like earia. nancy husband spoing with her last week. she's weak. >> she's talking with us and able to move about. >> it's spread by direct "a particular person." >> the strain throughout africa has been reported to killing about 60% of people up infected. >> american decon tim sawyer is now a single mom to three girls. her husband died after traveling from like heia to. >> ebola has porch to be merciless when it spreads out any way of stopping it other that mass isolation. >> david beg no. >> 5:13 traffic and weather together. >> good morning, ukee. thi

lij earia is on -- liberia is on high alert. it is contagious and can kill within cases. it spread to sierra leone and nigeria. 660 people have died. dr ben newman is a virologist in the u.k. and explains why ebola is difficult to detect and campaign. >> for the first few weeks you'll have flu-like symptoms, caused by the flu, colds and a host of other viruses and bacteria. if you look at the population, one person out of every 300 or so, one person per jumbo jet load will have flu-like symptoms ongoing at the moment. while they are trying to detect people and catch them at the border, it's a difficult thing. few have ebola, and many with similar symptoms, at least in the early stages. when one of us is infected we are all at risks. this is a virus that doesn't belong with one person. we have known from the start that a person could potentially get on a plane and travel anywhere in the world, and now they have. it shows that we need to be careful and proactive in dealing with the virus. >>> russian foreign minister lavrov is holding a news commence in moscow. it is contin

in this region, in 2001 a plane owned by sign earia airlines went down in the black sea, killing everybody on board. 78 passengers and crew killed. the ukranian military didn't admit it but it is one of their missiles like willing fired through a training exercise that brought it down. in 1998 a u.s. s missile cruise area targeted and shot a ukraine passenger plane, 290. president raying expressed regret call having a human tragedy. >> in 1983. a korean airlines plane was shot, it was well off its course, near or in russian air space. 269 crew members and passengers died in the shoot down, including a u.s. congressman, larry mcdonald. the white house called it a massacre. and the kremlin accusing the u.s. of master finding the event as a provocation. >> unusual, but it has happened as people look to find out what happened. looks like once again we have a commercial airliner shot down. >> more on the top story. it's not clear if the civilian airliner was intended to be the target. let's go to jacob ward for more on that. is it possible to tell different types of aircraft apart when you are

now the deadly ebola virus spreads to mij earia. >> watch -- nigeria. watch out for the traffic in nepal. but are bikes the april to cope with the cronn -- answer to cope with the chronic pollution and congestion. >> and sport - why a tough running race had a change of scenery this year. >>> the fighting in eastern ukraine forced international experts to abandon plans to go to the crash site of the malaysian airliner shot down 10 days ago. a group of dutch police officers arrived in nearby donetsk to join the investigation team, and cancel their visit to the site. >> unfortunately the security situation on the spot and on the road to that site is unacceptable for us. we have taken that issue not to despatch and deploy today. nisreen el-shamayleh is near the crash site and joins us live. what is the situation in the area where this plane came down over a week or so ago. >> well, close by we witnessed a convoy of ukranian army infantry heading towards the crash fight, heavily armed with artillery. quite a long convoy. we understand the ukrainians are tryi