Jeez.
"...According to a new study, up to 75% of adults have concealed an infectious disease from others in order not to miss work, travel, or social events. Unacceptable behavior..."
Never done that. Most of my illnesses are obvious. Before 9/11 I had a severe sinus infection and bronchitis. The airline didn’t care. I had a woman who was high as a fckn kite and drunk as my seat mate. They held the plane for her. She tried to talk to me in French and English. I ignored her. She called me a c$nt and a guidun (Montreal slang for old slu*. They finally took her to an employee seat at the back.