https://www.infectioncontroltoday.com/environmental-hygiene/level-bacteria-elevator-buttons-40-times-higher-public-toilet-seats
https://www.medicaldaily.com/clean-your-desk-office-space-more-hot-spot-germs-toilet-seat-313738
https://www.sciencealert.com/scientists-identify-potentially-harmful-bacteria-in-espresso-machines
https://time.com/4908654/cell-phone-bacteria/
https://www.businessinsider.com/flu-season-handshake-virus-2017-10?r=US&IR=T
https://www.advisory.com/daily-briefing/2018/03/01/germs-office
https://www.fantasticservices.com/antiviral-sanitisation-and-cleaning/
https://www.biocote.com/blog/germs-employee-absenteeism/