gounder: hantavirus is rare.t something everybody at home should be worrying about for themselves. most of the cases we have seen have been out west, maybe about 38 year, concentrated in new mexico, colorado, and arizona. you may remember in the early '90s, there was an outbreak of hantavirus that was discovered by indian health service doctors in the area, and there were about two dozen or so people who died in that outbreak. >> john: we have about 20 seconds left. older people more susceptible or people with weakened immune states? >> dr. gounder: presumably, but this is so rare we honestly don't have tremendous information about it. the best i have for you is if you are going to be cleaning your garden shed or basement, sure you wear protective equipment, masks, gloves to protect yourself. >> john: dr. some encounter, thank you so much. >> maurice: gladys larke was in her living room and taylors, south carolina. her husband, david, was in the kitchen. >> john: brad sigmon walked in, moved methodically back and

celine gounder is a cbs news medical contributor. dr., help us understand what hantavirus is. >> so this is a virus that is transmitted usually through rodent droppings or urine that have been aerosolized, where someone is breathing those in. there's quite a high case fatality rate, meaning of the people who we know hae hantavirus, how many die is somewhere between 30% and 50%, and they die from failure of the lungs and the heart to function. >> maurice: a lot of people have not heard about it, celine, so how common is it? >> hantavirus is rare. so this is not something everybody at home should be worrying about for themselves. most of the cases we have seen have been out west, maybe about 30 a year, concentrated in new mexico, colorado, and arizona. you may remember in the early '90s, there was an outbreak of hantavirus that was discovered by indian health service doctors in the area, and there were about two dozen or so people who died in that outbreak. >> john: we have about 20 seconds left. older people more susceptible or people wit

gounder says there's no harm in getting an extra dose of the vaccine to protect yourself. karen hua, cbs news, houston. >>> nba superstar lebron james just made history. >> lebron open, three -- got it! [ cheers ] >> there it is. the l.a. laker became the first player in nba history to score 50,000 combined career points during the regular season and playoffs. king james reached the milestone during last night's game against the pelicans. the 40-year-old is already a top scorer in nba history. >>> coming up, mexico's historic lawsuit against u.s. gun makers goes before the supreme court. the reaction from justices. >>> and order goes up in smoke in serbia's parliament. goes up in serbia's parliament. i told myself i was ok with my moderate to severe rheumatoid arthritis symptoms... ...with my psoriatic arthritis symptoms. but just ok isn't ok. and i was done settling. if you still have symptoms after trying humira, rinvoq works differently. rinvoq is a once-daily pill from the makers of humira that can rapidly relieve joint pain, stiffness, and swelling as fast as 2 weeks

gounder says there is no harm in getting an extra dose of the measles vaccine to protect yourself.aren hua, cbs news, houston. >>> there are troubling new safety concerns at washington's reagan national airport after several flights coming in to land received a series of rare false alarms. investigators are looking at onboard collision avoidance systems, known as tcas to determine if they're at fault. cbs' kris van cleave and his team sifted through hours of air traffic control audio and has this story. >> reporter: it's a midair mystery in washington's reagan national airport. the faa is looking into the possibility some kind of external interference craig erred collision avoidance alarms on at least a dozen airliners as they lined up to land saturday morning. in about half the cases, the tcas system told pilots to take evasive maneuvers to avoid objects that weren't there. >> did you actually visibly see anything other than what the tcas were showing? >> negative. it was just a unidentify target. >> reporter:. >> it is a mystery. >> reporter: former ntsb chair robert zumwalt. >>

celine gounder is here to explain how the virus can affect a person's ability to fight other virusesus, paul tazewell made history at the oscars, becoming the first black man to win for best costume design for his work on "wicked. " he will be here to tell us what went through his mind when his name was called. . >>> the legendary ringo starr talks with anthony mason about his upcoming special which celebrates the former beatle's love for country music. we will have more on the show. we will see you at 7:00. >>> all right. nate, we will see you then. >>> well, we want to get now to our revive and thrive segment. we know daylight savings time is here, and it is kind of tough for a lot of people because you have to wake up a little bit earlier. it is that time of year where we are to change the clocks, spring ahead and lose that hour of sleep. danya bacchus has information to show us how some experts want to stop that time change. >> reporter: clocks move forward this sunday for daylight saving time, and just like clockwork the debate over seasonal time change springs into action. >> d