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Quarantine isn’t just for people now.

The U.S. Federal Reserve has started putting aside some of the physical cash it receives in order to help reduce the spread of the coronavirus.

The Fed’s regional banks are now holding bills that they receive from Asia aside for a minimum of 7 to 10 days, a central-bank spokesperson said. After that precautionary measure, the cash is processed and deposited.

The bank is prepared to modify its procedures as the Centers for Disease Control and Prevention identify additional countries as risky, the person said.

The CDC says that “the virus is thought to spread mainly from person-to-person.” Although it is possible to contract Covid-19 by touching an object that has the virus on it and then touching your face, “this is not thought to be the main way the virus spreads,” it says.

So far, the outbreak has infected more than 100,000 people around the world, and the number of cases is growing in the U.S.

Along with the specific hospitalization and quarantine measures that are being put in place by countries around the world, health authorities are advising that everyone take basic precautions like washing their hands and covering their mouth when coughing or sneezing.

The World Health Organization has also flagged the possible risks posed by physical cash. It has advised that people use contactless payments if they can, the Telegraph reported.

If consumers follow that advice, it could be a boon for the new generation of contactless credit cards offered by Visa (ticker: V) and Mastercard (MA), as well as services like Apple’s (AAPL) Apple Pay, PayPal Holdings ’ (PYPL) Venmo and Square’s (SQ) Cash app.

Write to Ben Walsh at ben.walsh@barrons.com