Have you read those "studies"? Be careful when commenting on observational findings done over a decade ago.
Neckties have never been implicated in transmission of disease. If you culture them (which is all they did), guess what? You'll find bacteria. Just the same as if they cultured your shirt, the pen you use daily, your fingers, the keys of the computer, your stethoscope tubing, etc.
I've never seen a colleague allow their necktie to dangle into a purulent wound and then drag it across the next patient's decubitus ulcer. There are things called tie clips, or buttoning it inside your shirt/white coat (also a presumed source of fomites) or wearing a bow tie (only for ENT, Urologists in the surgical world, and Neuro or Psych). I'm certainly not advocating wearing dirty clothes to the hospital but if we are going to implicate ties, we had better look at everything else we do casually, assuming those objects are innocent.
