Dr. Jeffrey Shaman, professor at Columbia University's Mailman School of Public Health, agreed that handling cash was a worry in the current health crisis.
He tells CBS News: ‘Droplets can live on surfaces, including subway seats and dollar bills. It seems like it could be a path for transmission because it's something people commonly share and handle.’
The expert opinions have lead many to recommend that people stop handling cash altogether, and use credit cards or non-contact pay methods instead.
‘Credit cards are personal, so no one touches them [in many retail transactions] other than the owner,’ Dr. Maggirwar said. ‘Cash exchanges hands and you never know how far that particular bill as travelled.’
The advice comes as countries around the world take extraordinary lengths to stop the exchange of cash.
In the US, The Federal Reserve is delaying processing dollars that have been originated from Asia, while in Iran the government has urged people to stop using cash. The Louvre Museum in Paris, meanwhile, has stopped accepting cash from visitors to stop the potential spread of coronavirus.
The World Health Organisation says that people should be careful when handling cash.
‘It is good hygiene practice to wash your hands after handling money, especially if eating or handling food,’ said WHO in a statement, but aded that it ‘did not say cash was transmitting coronavirus.’