COVID-19 cleaning, disinfection guidelines from Texas A&M experts Posted in: Lifestyle Cleaning frequently touched surfaces like light switches and door knobs are important to reduce the chance of COVID-19 spread in the household. (Texas A&M AgriLife graphic by Kim Topp) MARCH 25, 2020 — Cleaning and disinfecting are paramount to preventing COVID-19 contamination from spreading into and throughout one’s household.PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today!