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Plywood covers the windows of Dylan Murphy’s, an Upper East Side bar.

“We are all in this together,” reads the spraypainted message. “Stay home. Save lives.”

The watering hole isn’t the only New York business barricading itself to try to slow the spread of the novel coronavirus since Gov. Andrew Cuomo put a lockdown in place March 20.

With no idea when they might get to reopen, luxury retailers like Louis Vuitton, Dior, Coach and Dolce & Gabbana have boarded up their Soho windows, Fox5NY reported. Sephora has done the same at its Times Square and Meatpacking District locations.

Mark Dicus, executive director of the SoHo Broadway Initiative business improvement district, has reached out to landlords and retailers urging them to consider alternatives, such as hiring security firms or keeping on interior lights.

“We want to maintain a sense of normalcy and make sure our neighborhoods are safe,” Dicus told The Real Deal. “We feel there are ways to take care of that without resorting to drastic measures like boarding up storefronts.”

One concern for businesses battening down is potential civil unrest, as the virus rages through the city and fewer police officers are on the streets.

Crime has dropped since the lockdown because of so many New Yorkers staying home, but the virus has hit New York’s Finest hard. The NYPD has reported seven deaths in its ranks, and 1,619 uniformed cops have tested positive for COVID-19; another 6,695 are out sick.

Gov. Andrew Cuomo vowed Friday the state will provide backup to the NYPD however it can.

Businesses from Washington DC to Honolulu also are trying to protect their properties.

Boards covering Churchill Tavern at 28th Street and Park Avenue balance the drastic move with a message from its namesake, Britain’s World War II leader Winston Churchill: “If you’re going through hell, keep going.”