If I were an airport worker I’d stay as far away as I could from anyone exhibiting symptoms. If that sounds self-centered and uncaring so be it. I think that if they are honest most airport employees would say the same. If people in ABC suits still sometimes get this disease then what good are a pair of latex gloves and simple surgical mask do?
When I consider the training they likely had, I look back at basic training and the intense training I received in CBR.....(chemical, bio, and radiological).
"Put your gas mask on, walk into that tear gas filled garage and stand there until you're told to take off the mask........"
Problem is, if you're close enough to notice symptoms you've likely already been in the contagious zone long enough for infection. Just one tiny still-wet spot (sneeze debris, skin oils, whatever) with just one virus and you're in for a very bad month.