Let's get right to our top story. Look at the map, 84 cases of measles reported in 14 states since the start of 2015. Startling and including a frightening new case overnight, one that may have... See More
Let's get right to our top story. Look at the map, 84 cases of measles reported in 14 states since the start of 2015. Startling and including a frightening new case overnight, one that may have exposed hundreds of thousands of commuters. Meanwhile, doctors in Arizona are scramblinging to monitor 200 potentially infected people just in time for the super bowl which will, of course, be played near Phoenix. ABC's Neal Karlinsky is on the story from the site of the big game in Glendale, Neal, good morning to you. Reporter: Dan, good morning. Hard to imagine a worst place for a potential measles outbreak. Officials here at the super bowl are on guard this morning determined to keep the fans safe and the measles out. Overnight New York officials confirming a barred college student who has tested positive for measles was contagious on Sunday when he boarded an amtrak train to Albany fm New York City's Penn station possibly exposing hundreds of thousands of travelers in north America's busiest transportation center. My main concern with my daughter is that, you know, we take her to a McDonald's and she comes back with the measles. Reporter: In Arizona, officials are monitoring 200 patients of a pediatric clinic for possible exposure, an infected woman visited the office Jo out side of Phoenix days before an estimated million visitors from around the country flooded the city for Sunday's super bowl. An infected person can spread the disease for days after the first symptoms appear. It lives on fasts and in the air for up to two hours meaning even after a sick person left the room anyone without immunity could still be infected leading some doctors to blame this outbreak on so-called anti-vaccers, parents who refuse to have their children vaccinated. We should be fully informed with what exactly is in each and every injection that goes into our child's body. Reporter: In the epicenter of this, one California health care company rob calling those parents with an urgent reminder. Measles is an highly contagious infection that can have serious complications. Reporter: As schools warn their children to stay home some pediatricians refusing to allow the families in their offices at all. They're not welcome unless they decide to immunize. They have a right to their opinion but not to infect my other patients vulnerable in my office. Reporter: It only takes a cough for a sneeze, even a touch from an infected person can linger for hours. They'll definitely be packing their hand wipes and pure here at the super bowl. Paula. So contagious, Neal Karlinsky from the super bowl this morning. We want to bring in ABC's Dr. Richard Besser. Good morning to you and first of all can you remind us how contagious measles is and what it means for this latest indent on the amtrak train. This is one of the pose contagious viruses we know of. If you haven't been vaccinated if you haven't had the disease there's a 90% chance you'll get it. A train car is where you have to be concerned because people are in there, what the health department is saying on that train and were not vaccinated if you get a fever you need to check in with your doctor because you may have measles. You see over this year the flu season hasn't been very effective. Not the case for the measles vaccination. The good news this is one of the best vaccines we have. It reduces your chances of getting measles if you're exposed from 90% to 1%. That's really incredible. A very effective vaccine. I know my 1-year-old is due for his mmr. That mmr, measles, mumps, rubella. Not a one-time vaccination either. For kids two dozes, for one adult, it's one. We vaccinate not to protect ourselves but babies like yours too young to be vaccinated or people with immune problems at risk at getting it because they can't develop the immunity. They're warning anyone to stay away from the super bowl with symptoms. Communities on high alert to do everything they can. When you see crowds of people getting together that's the setting where you have to be careful. Not everyone will be protected. Make sure no one goes to that setting who could have measles. They're having people stay home who have the possibility they're developing measles. That's all smart things to do. That vaccination, 99% effective. It's terrific. It really is. Thank you very much for joining us this morning, rich.
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