1. Healthline, “Want to avoid dangerous bacteria? don’t use public touch screens,” 2018.
2. M. Health, “Traces of poo have been found on every mcdonald’s touchscreen,” 2019.
3. T. W. Post, “No, mcdonald’s touch screens are not contaminated with poop,” 2018.
4. Practicability of hygienic wrapping of touchscreen operated mobile devices in a clinical setting;M. Hammon;PLOS ONE,2014