according to your doctor...
https://www.mayoclinic.org/diseases-conditions/coronavirus/expert-answers/can-coronavirus-spread-food-water/faq-20485479
Household surfaces. In a study by the U.S. National Institutes of Health (NIH), researchers found that the virus that causes COVID-19 can live up to four hours on copper, up to 24 hours on cardboard, and up to three days on stainless steel and plastic surfaces. Regularly clean and disinfect commonly touched household surfaces — such as tables, countertops, doorknobs, light switches, toilets, faucet handles and sinks.
You might need a better doctor because he's very wrong about the basics of this virus.
I want a source on your claim that most of the cases are asymptomatic
Edited by Say_What at 14:22:01 on 10/28/20