Why can airplane travel expose you to a high concentration of germs if airlines say the area is cleansed with filters and the plane is cleaned regularly ?

Question

Why can airplane travel expose you to a high concentration of germs if airlines say the area is cleansed with filters and the plane is cleaned regularly ?

In: Biology

Answer 1

Also, your interacting/being in a small space with a lot of people from difrient areas. Expireancing germs from different areas of the country/world.

Your being exposed to the cold from X city when your body is used to the cold from Y city.

You may have gotten the cold from your area already, but now your exposed to a cold from somewhere else’s thats slightly different.