There are two very important questions that you must truthfully answer for your own protection and the protection of the rest of the passengers and crew.
Viruses can be spread many different ways. Recall that viruses must have a host cell to reproduce. Without the host, viruses usually can't exist very long. However, viruses do survive long enough to be spread through the water, air, or by person-to-person contact, such as contact with virus infected blood or saliva.
Click on the terms below to see different ways viruses can spread: