I wonder how safe it is to queue at an airport, walk to the plane on a ramp among 100 yawning, coughing others, and reverse that process on the other side. It

I wonder how safe it is to queue at an airport, walk to the plane on a ramp among 100 yawning, coughing others, and reverse that process on the other side. It may negate the safety of the actual airplane trip, or it may not.