Coronavirus updates: 1st vaccines now on the way to all 50 US states

Canada has authorized the Pfizer vaccine, becoming the third country to do so after the United Kingdom and Bahrain.

Canada's health department said, "after a thorough, independent review of the evidence, Health Canada has determined that the Pfizer-BioNTech vaccine meets the Department's stringent safety, efficacy and quality requirements for use in Canada."

A rollout date was not announced. Initial supplies will be limited with more doses available in the spring, officials said.

Health Canada is also reviewing another three vaccines.

ABC News' Kirit Radia and Christine Theodorou contributed to this report.

Baltimore will shut down indoor and outdoor dining beginning Friday, said Mayor Brandon Scott, who was sworn in on Tuesday.

Restaurants can offer takeout and delivery. 

Scott’s order also sets a 25% capacity limit at retail stores, religious institutions, gyms and malls.

The new rules come as Maryland reported a record number of hospitalizations during the pandemic -- 1,715 patients -- surpassing the previous peak in April.

ABC News' Dee Carden contributed to this report.

President Donald Trump's personal lawyer, Rudy Giuliani, told WABC Radio that he'll be discharged from the hospital Wednesday afternoon following his COVID-19 diagnoses.

“I feel just about 100% right now," he said.

Giuliani said he will isolate for a few more days “because the way they calculate it, I probably got it [the virus] about seven, eight days ago.”

Seven days ago, Giuliani was in Michigan, testifying at the state's House Oversight Committee hearing for suspicion of voter fraud. The next day, he appeared at a hearing at the Georgia Senate Judiciary Committee to contest that state's results.

ABC News' Ben Gittleson contributed to this report.

Dr. Anthony Fauci stressed Wednesday that the speed of vaccine development “was not compromising safety, nor was it compromising scientific integrity.”

"The speed is really a reflection of the extraordinary scientific advances that have been made that allowed us to do things in weeks to months that normally would have taken several years," Fauci explained at the Johns Hopkins Bloomberg School of Public Health Summit. "The process that went into deciding the safety and efficacy was both independent and transparent." 

"We've got to be doing a lot of community engagement and community outreach to get people to understand," Fauci said.

ABC News' Sophie Tatum contributed to this report.