Rare Lung Virus Affects Kids Across the Country

Virus starts off like a cold, but can be potentially deadly.
2:59 | 09/08/14

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Transcript for Rare Lung Virus Affects Kids Across the Country
Kids across the country hospitalized after contracting a scary lung virus that starts off as a cold but can turn deadly. Reporter: This morning, just as the school season begins, a mysterious virus striking children by the hundreds is spreading across the country. From Colorado -- I was scared. I remember thinking I was going to die. Reporter: To Missouri -- I was having trouble breathing. Reporter: To Ohio and beyond. We're really using up almost all our beds. That is unusual. Reporter: Take a look. At least 1,000 children in these ten states stricken with a res pra toir illness over the last three weeks. They suspect it's enterovirus 68. Soon, the symptoms turn much more dire, with children losing consciousness and having difficulty breathing. Children under 5 are most susceptible. But many are at risk. Like 13-year-old will. My head started hurting after my lungs started sort of closing up. Reporter: Cornejo is now recovering at a Denver hospital, where at least 900 children have been affected. To go from a cold to being probably minutes away from death, that's kind of scary. Reporter: The virus now prompting warnings from doctors, some hospitals banning child visitors to prevent the spread further. We're seeing in the hospitals is the tip of the iceberg. Reporter: In Kansas City, health officials observed a spike in mid August, right after school started. While doctors recommend you keep hands washed regularly, they say hand washing is something kids really don't do. Officials calling this unprecedented. We're going to bring in ABC's Dr. Richard Besser, who has been talking to the director of the division of viral diseases. What are you hearing? This is an unusual time. Kids go back to school, share things, bring them home to their siblings. This is the time of year we tend to see enteroviruss. This one is rare. It's been a very dangerous infection. What should parents do? Hand washing. Parents have to supervise. If your child is sick, keep them home. Covering coughs and sneezes. This virus causes wheezing. If you notice difficulty breathing, get help right way. Those with asthma have goaten the most sick. You say it's going to spread? I have never seen a virus that respected a border. It is in ten states now. Lit spread. They've been identifying it. If you're an adult with a breathing problem, you have to watch out, too. You'll be taking people's questions on Twitter. That's right. Right after Thi

This transcript has been automatically generated and may not be 100% accurate.

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