Transcript for 2 mothers come together after their children are diagnosed with same illness
exclusive. Two mothers brought together by a terrible disease striking their children. Now meeting for the first time to share a heart-felt thank you that may have saved a young here's ABC's Trevor Ault. Hi! Reporter: This morning the emotional meeting between two mothers and their families, connected because of a terrifying illness, but also a willingness to share. The power that social media has to save lives is insane. Reporter: It was three year's that Rachel Scott's son Braden lost the ability to swallow and days later was paralyzed. All parts of his spine were affected. He lost the ability to move everything except for some of his fingers on his left hand. Reporter: It took a full week before doctors find the diagnosis, acute flaccid myelitis, afm, an extremely rare condition similar to polio. He's still fed through a tube because he still can't swallow. We're confident if we would have known sooner we could have stopped it from spreading. And perhaps the effects wouldn't have been as severe. Reporter: Rachel has been advocating for afm awareness sharing Braden's story on Facebook. That caught the attention of Elizabeth Cardoni. I remember seeing this and being struck to my core for this family. What a horrific and tragic thing they were dealing with. You go from a common cold to on life support. Reporter: Last month Elizabeth saw her son heading down the same path. 2-year-old Corbin first catching a cold. I sat him down next to the crib. I stood him up and he collapsed. I did it again and he collapsed again. It was seconds before I connected the dots from a respiratory illness for over a week. He was getting better and then had this onset weakness. I immediately thought of Braden and afm. Reporter: Knowing the signs she messaged Rachel, still a stranger, asking what to do. On Rachel's advice asked the doctor have afm. You don't jump to afm when a kid can't walk. I've seen strange things. One of the key things -- I'm not being flippant about this. Listen to the mother. Reporter: In this case the mothers were right. Corbin received the same frightening diagnosis, but got treatment right away. Four days after losing the ability to walk, Elizabeth sharing the amazing news on her Facebook page. Writing Corbin is walking and then he jumped and then he ran. He ran out of the hospital. Walked in not able -- he didn't walk in. We carried him in un able to walk and very weak in his legs. Didn't have any reflexes in his lower extremities. Two weeks later he ran out. Elizabeth's pediatrician stresses that afm is rare. It is odd that it strikes every other year. So far the CDC only confirmed 28 cases this year compared to 200 in 2018. There are a number of studies right now trying to figure out the cause. There's so many questions still. Rare, but good we're hearing about it. The doctor was right, listening to the mothers. Parent's instinct. Thank you, Trevor. Coming up on "Good morning America" the best way to score a
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