How to combat germs during spring break travel

A second wave of the flu is hitting kids in the U.S. and the CDC estimates that there have been at least 26 million cases.
3:03 | 02/17/20

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Transcript for How to combat germs during spring break travel
flu hits children, a look at how to stay healthy while traveling. The CDC estimates there have been at least 26 million flu cases, 250,000 hospitalizations and 14,000 deaths so far. Gio Benitez is back now with helpful tips before spring break. Good morning again. Planes, trains, buses, some of the best ways to get around, but some of the fastest ways to get sick. This morning, we're going to go to the experts now for that crucial advice. Take a look. Reporter: As more than 75 million Americans are expected to travel this month by air alone, Dr. Nick testa reminds us on this fake plane at air Hollywood, how to stay healthy when taking to the skies. On an airplane, you have almost a hundred time increase to contract a respiratory illness. Reporter: This route makes about five flights a day. Four straig strangers are touching your table tray, air vent. There are about 12 times more bacteria per inch than your toilet seat at home. If we bring a wipe, we want to wipe it with us, and clean off the tray table. Reporter: And air is filtered every two minutes. If a flu carrier sneezes, watch this simulation done for popular science. These passengers because of the air flow to the sides and behind the sides, are most at risk, but it's not just planes. When it comes to buses -- You probably don't even realize how many things you're touching. You'll present your fare, and touch that. You'll touch these steel bars and grab onto these straps and when you sit down, you'll touch the steel again, and of course, you'll pull that cable to request a stop. Reporter: And Dr. Testa says, move to the back if there are less people there. Staying close to the exit door where the air circulate. The way we get sick, is we're rebreathing each other's air. Reporter: He says your seat selection can sometimes protect you and on trains too. If you sit at the window seat, you decrease your chances of getting sick because less people are walking by you. Reporter: How far can germs travel? If you were to sneeze what would happen? I can create a cloud of virus that extends 12 feet. That's the people in front of me, the people behind me, and you the person next to me. And the person on the other side. Absolutely. Reporter: That's why Dr. Testa says, cut the small talk. Even by speaking they can easy expose you. I recommend decreasing the small talk on the train. Keep it quiet. At the end of the day, your best bet is just staying hydrated, lots and lots of water. Try to stay away from those dehydrating drinks, but every single time that I'm getting on a plane, I'm getting those anti-bacterial wipes. You get those, and I'm wiping it down. I don't care who's watching me. You got to do it. It takes a few seconds. And the tray. How bad was it? 12 times. Everybody in here said -- oh yeah. Everybody in here said, ew. Good morning.

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

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