Not just recirculated air.

Recirculated air on airliners has been blamed by scientists for many an infection.

This may well be true but I have an alternative source which is considerably simpler to deal with.

At security gates, the trays we recently saw at Leeds/Bradford were disgusting - and we had to put our belongings inside! They looked as though they had never been washed and of course, are handled by possibly thousands of passengers every week.

Naturally, I wonder where the vile cold came from which did its level best to ruin my break away.

If I'd thought Leeds/Bradford was bad - Alicante was a revelation. Grime, grease, ingrained filth.

I wonder if I picked up a second infection travelling home?