Americans have been haphazard about tackling the containment of the coronavirus, say experts, and should emulate the successful tactics used by other countries around the world.

Three prominent doctors say that there are four key strategies that must be in place to win the war against COVID-19. We must test widely, isolate the infected, trace the contacts of those infected, and quarantine appropriately.

This is called “smart quarantine” according to the doctors in a New York Times opinion piece published Tuesday. Harvey V. Fineberg, former president of the National Academy of Medicine, Jim Yong Kim, a doctor specializing in infectious diseases, and Jordan Shlain, an internist, outlined the steps required to institute this smart quarantine and help us to not only slow the rise of COVID-19 cases, but also to bend the curve downward.

First and foremost, the U.S. must dramatically increase its capacity for testing and tracing contacts. Then, according to the Times, the U.S. must create a tiered, humane isolation procedure.

In a smart quarantine, anyone in a family who is not well must get tested and separated from the family until the results return, say the experts. The separated family member moves into temporary accommodations that are medically supervised, says the Times. If they test negative, they must remain in the temporary quarters for 14 days and then get tested again. If they are still negative, they can return home.

Those testing positive, however, enter a more formal COVID-19 recovery facility and will be sent home after they recover and are tested negative twice. People who get worse will be sent to an acute care facility, according to the Times.

“In a tiered system like this, only those that need critical care would be sent to regular hospitals and intensive care units,” say the doctors. “This would allow us to avoid many of the serious shortages—ICU beds, ventilators, personal protective equipment, health care workers—that we’ve seen in places like Italy and New York City.”

According to MSN, Czech authorities are now testing a smart quarantine system by using a group of computer experts to trace data from mobile phones and bank cards of people with coronavirus to identify any contacts who may also be infected.

“Of all these measures, the one that will require the greatest adaptation on the part of the American public is isolation and quarantine,” say the experts, according the Times.