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The US suffered its deadliest week from the coronavirus pandemic last week — and it’s only going to get worse, numerous experts have warned.

Data from Johns Hopkins University shows that 15,658 Americans died over the last seven days — in what the university says is a new record surpassing even the initial peak in April.

The alarming surge takes the total number of COVID-19 deaths recorded in the US to 283,747 as of Tuesday morning.

The past week also saw more than 1.4 million new reported cases, also a new record, taking the US total close to 15 million infections, the data shows.

“What we’re seeing now is less of a curve and more of a vertical climb,” Jennifer Nuzzo, an epidemiologist at Johns Hopkins, told NPR. “It’s really an extraordinary acceleration.”

Experts previously warned that the official figures might only be a fraction of the true total — with many now warning it will likely soon get worse, with new cases growing faster than impending vaccines could initially help contain.

“Even if we authorized the vaccine next week … disturbingly we don’t get a huge impact until after April,” Dr. Christopher Murray, director of the University of Washington’s Institute for Health Metrics and Evaluation (IHME), told CNN.

“We’re in a full-on winter surge,” he told the network in another interview, warning that Thanksgiving and Christmas will likely contribute to the US seeing “the numbers keep going up.”

“They’ll keep going up probably well into January, so we have some dark months ahead,” he warned.

The IHME has predicted 539,000 cumulative deaths by April 1, with peak daily deaths reaching 3,000 in mid- to late January.

With Post wires