California needs another 50,000 hospital beds to prepare for the rapidly spreading coronavirus pandemic, as well as at least a billion gloves and hundreds of millions of gowns, masks and other protective gear, Governor Gavin Newsom said Monday,

The number of additional beds needed is staggering, given that there are now just 75,000 licensed hospital beds across California’s 416 hospitals, and is more than double what state officials had projected just a few days ago.

About 30,000 of that capacity can come from existing hospitals, by converting buildings on their campuses or parking lots to hospital tents, or by squeezing more beds into current facilities, Newsom said. The additional 20,000 beds needed to meet the gap will have to come from temporary sites and hotels. So far, the state has plans to open up about 3,000 new beds in the short-term, he said — including at Seton Medical Center in San Mateo County and two other facilities in southern California — and are “deep in negotiations” to open up other facilities in Northern and Central California, including at state fairgrounds, convention facilities, motels and hotels.

The federal government has also stepped in to provide medical support, including,1,000-beds aboard the hospital ship USNS Mercy, which is headed to Los Angeles, Newsom said. Another 2,000 beds are expected to be made available at eight federal medical shelters around the state, including one at the Santa Clara Convention Center that is expected to be readied this week. On Monday, Michael Clark, the acting operations section chief for Santa Clara County emergency operations center, did a walkthrough of the site, which will be turned into a makeshift hospital with beds for about 250 patients. Like the navy ship, the medical shelter in Santa Clara will treat patients with less serious conditions than the coronavirus, freeing up space in local hospitals to care for those diagnosed with the virus caused by COVID-19.

State officials are also scrambling to address shortages in medical supplies, including personal protective equipment sets, including gloves, gowns, masks and shields. Current projections show that just the existing hospital system would use up to 200 million such sets in three months — suggesting that medical professionals will soon start facing dire shortages in the supplies required to protect them from exposure to the virus.

“We’re talking in the magnitude of hundreds of millions,” Newsom said of the amount of supplies needed, adding later, “That was not a made-up number. That was not a typo.”

Because the Trump administration has so far declined to mobilize the private sector to deal with nationwide medical supply shortages, states are currently competing with each other over to bid for equipment, Newsom said, though he added that California “punches above its weight.” State agencies and officials have been combing the globe for the needed supplies, working with everyone from brokers and distributors in mainland China to local manufacturers, Newsom said. So far, he added, six California companies have agreed to produce gowns, while another 25 are involved in talks to make masks via 3-D printing.

He also noted that Tesla chief executive Elon Musk had already made good on his pledge to manufacture 1,000 ventilators to address shortages of the equipment in hospital intensive care units. The ventilators, Newsom said, were delivered in Los Angeles Monday.

Casey Tolan contributed reporting.