It's one of the busiest travel times of the year which means you have a greater chance of getting sick, especially on airplanes.

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Dr. Christopher Doering, Vice President of Medical Affairs at Fransiscan St. Francis Health, says airplane passengers can get sick very easily, especially during the holiday season. He says the best advice is to remember the same old stuff.

"The biggest key is washing your hands and having one of those little bottles of hand sanitizer in your pocket because you're operating in a cesspool of germs when you get on airplanes and around other people who are sick this time of year." Dr. Doering says.

Dr. Doering says the biggest germ magnets in airplanes are tray tables and the pockets on the back of the seats. He says to take extra care when getting on flights because you have a greater risk of getting sick if you're within two seats of a sick passenger.

Dr. Doering adds that the air inside the airplane can become stagnant when the plane is on the ground which can be a breeding ground for germs. However, he says once the plane takes off, the air goes through a strong filtration system which makes things better.