and it can affect the rest of our lives. and we're not willing to take that risk. >> reporter: and she has reason to mother. a mother who acquired zika virus while traveling gave birth in miami to a problem with retina problems. it was horrible, she says. this as children head back to school. one of the first lessons, zika virus. >> what we know about the zika virus. >> it's very scary. but the school prepared us well. >> reporter: doctors are worried about the unknown. what zika infection can mean for others beyond pregnant mothers. >> we don't know much about how to deal with older children that have been >> reporter: and most of this iconic ocean drive is in the zika zone. that will affect tourism. the governor saying he'll send an additional $5 million for zika preparedness. gio benitez, abc news, miami beach. >> scary times in miami for many people. >> and expanding now. coming up, the military veteran who made a splash on abc's "dancing with the stars". >> how he's using his newfound celebrity to fuel his latest challenges.

"world news now" continues

you might remember a man who you might remember a man who delivered stunning performances on "dancing with the stars" despite being a double amputee. >> he's talking about his life and recovery from a catastrophic war injury in iraq. we're up with juju chang. >> reporter: long before "dancing with the stars" made him a household name, before he was a magazine cover model, before he was a commercial success, noah galloway was struggling to rebuild his life when he lost nearly everything in the flash of an explosion in iraq. >> there were several times i laid there and thought it would have been easier if i died. it would have been better if i died. >> reporter: his painful journey back, he recalls in his memoir "living with no excuses: the

his second deployment was cut short by a fateful drive in a humvee. what was it like to wake up in that hospital room and realize i'm only not indestructible but no longer the protector? >> that hurt me deep. >> reporter: after returning home to alabama, noah still faced emotional scars, using alcohol to fill the void his injuries left behind. >> reporter: tell me about the night you got a dui. how did that officer change your life? >> that officer changed my life because he arrested me. i had a lot of police officers that they felt sorry for me. >> reporter: what did that week in jail mean to you? >> it's sad, but it's true. i met a lot of people in there who had way worse situations they found themselves in that are harder to dig out of. i wasn't at that point yet. >> reporter: noah says fitness set him on the right path. through competing in races he found a new mission pushing

what was your reaction when people would say you can't do that? >> i'm going to find a way to get it done. don't challenge me. >> reporter: his success landing him one of his biggest challenges. ballroom dancing. despite a documented lack of rhythm, noah quickly became a fan favorite with emotional dances like this one to "american soldier," ultimately placing third. ? >> if it weren't for the people voting for me, each week i was on the show, another part of my story was shared in dance. >> reporter: his newfound celebrity propelling even more missions. we followed him on a return trip to the walter reed army medical center. >> how you doing? >> good, real good. >> you look great. >> reporter: reuniting him with the men and women who helped him learn to walk again. pushing prosthetics.

prosthetics to a level they had to start improving. >> you were one of them. >> i just know i tore up a lot of them. >> reporter: perhaps most importantly. >> but ever watch "dancing with the stars"? >> i have. i have. >> i was on it. >> he was on it. >> yeah. >> what? >> reporter: serving as an inspiration to patients on the same path. for night line, i'm juju chang in alabama. so great. when you're in a situation like that and sometimes it's hard to see the light at the end of the tunnel to have someone that says i went through what you're going through or something similar and look where i am now. >> and such a beautiful moment with the kids. juju pointed out on instagram that he took her for a ride in his backyard. it was rough and rugged terrain. she goes, next time he offers to take you for a ride, make sure that you are paid up on your insurance premium. it was rough. >> it's an adventure. coming up, another patriotic olympian.

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oh, dishwasher, why don't you dry my dishes? oh, he doesn't know any better. you just need to add finish? jet-dry? in the rinse aid compartment. it's there for a reason. it dries much better than detergent alone. sorry dishwasher.

? "cheap thrills" keeps coming back. >> i think it's the song of the summer. >> it probably is. now that's been settled. finally, before we completely put the rio olympics in the rearview mirror, a special moment featuring an american medalist. he's one of the best pole vaulters in the world. >> but that didn't matter when he came down the runway. we have his story. >> reporter: it's about to happen right here. the olympics moment you didn't

american pole vaulter, sam kendricks, watch the approach about to happen -- ? he stops right before the vault as he heard the national anthem. standing at attention, the 23-year-old from mississippi taking a risk on the qualifying jump to pay his respects. it turns out he's a second lieutenant army reservist. >> i had this usa across my chest. when i'm on the world stage, there will be people watching. >> reporter: they were, and so are we. stopping for that anthem and then going onto win the bronze. that second lieutenant army reservist, proudly holding the american flag. david muir, abc news, new york. >> it kind of gives you chills. doesn't it? such an amazing moment to be able to see him do that, and

>> that's the thing. i wonder if he could have gotten hurt trying to stop like that in the middle of the vault. >> it wouldn't matter. >> we should point out that he's not the first person to do something like this. usain bolt got a lot of press last time around and this time for all the medals he won, but this is him giving an interview four years ago. >> he stops the interview. when ""the star-spangled banner"" started during another medal ceremony. he stopped talking and just stood respectfully. after the song was finished, he finished the interview. >> that's the news for this half hour. >> that's the news for this half hour. interview. >> that's the news for this half

night. some roads in north las vegas looked like this...causing some real problems for drivers! good morning las vegas! i'm ... and i'm xxx.... we want to get right to some amazing video of overnight of rain hitting the valley! take a look at this major flood boulevard. when our crews were out there the water was up to mid thigh! cars were buried under the water! should we be prepared for more severe weather like this today, greg?