A panic-buying fever swept through the Big Apple Thursday, as mobs of freaked-out New Yorkers frantically scoured store shelves for any remaining supplies amid spreading coronavirus fears.

“We’re freaking out about it,” Monica Gang, 27, said as she braved the crowds at Trader Joe’s in Manhattan. “We came in here looking for rice, and there is no rice left. Rice crumbs are the only thing left. We don’t even know what to stock up on.”

Food markets across the five boroughs were overrun by unnerved residents looking for supplies, with many finding shelves bare of rice, tomato sauce, peanut butter the moment they got in the door.

A Costco in Sunset Park got so mobbed that the store shut the main gate of the parking lot.

Inside, shoppers waited 40 minutes to check out at the register, carts piled high with any non-perishable items still available.

“It’s hell in there,” Simon Cohen of Mill Basin said as he left with four 40-packs of bottled water, a 15-pack case of seltzer, cans of tuna, vegetable oil and frozen salmon. “There are something like 15 cashiers and people are lined up all the way to the opposite wall.”

“I want to be prepared,” said Cohen, 46. “I don’t want to be the one laughing about this virus and ending up with no food when I need it.”

Alisa Roberts, 23, of Crown Heights, said Thursday marked her fourth trip to Costco in the past 30 days to stock up — and this time she struck out on finding bottled water.

“You can’t get your cart through the aisles, that’s how crazy it is,” she said. “The only aisles without a lot of carts are the ones that carry makeup, plastic ware and stuff like that. Anything to do with food, you can’t pass whatsoever.”

By 3:30 p.m., aisles once stocked with dry cereal, canned food and bottled water were largely cleaned out at Whole Foods in Gowanus.

“I did a shopping trip yesterday and thought I was all set,” said Adelia Erickson, 49, of Park Slope. “Then I made the mistake of checking the news and seeing lines of people in supermarkets, and paranoia got the best of me. So, here I am again.”

New Yorkers have been stocking up on supplies for weeks. But with the COVID-19 epidemic spreading, more and more are loading up in the event they are forced to quarantine themselves at home — or ordered to stay inside their homes as the bug continues to spread.

“I’m not afraid, but I think the government is going to take more measures to put people on lockdown and people should just be prepared to be stationary and stay put,” Matt Rotenberg, a Manhattan lawyer, said at Trader Joe’s Thursday. “We got maybe 20 meals for $200.”