Actually, you are somewhat wrong. The cold whether makes it easier for the influenza virus to gain access in our nasal pathways due to weakened defenses. There's a paper on it, when I have some time I'll post it.
Not the one I was thinking of, but see here:
https://www.ncbi.nlm.nih.gov/pubmed/28361289
It's not so much that the cold weather makes the spread easier but it makes our defenses themselves weaker (not dry mucous membranes!) against the viruses which are fairly prevalent.
Will have a look! The fact that our mucous membranes dry out is caused by the dry heating air in the rooms, not the cold weather. I made my point no clearly there. I wanted to point out that the cold is caused by viruses and that cold weather is in favour for influenca to spread since our immune system is weaker. Without germs there is no infection, doesn't matter how cold it is. Hope you can agreee on this
Sure that is a good point to make. The old wives tail that if you get cold you'll catch a cold, is true. Not for the reasoning exactly that mother's and grandmother's thought, and perhaps not due to anything that bundling up in a coat and hat can help with. The cold disrupts the functioning of interferon in our nasal pathways, our first line of defense against viral Invaders.