Prime Minister Justin Trudeau walk to the podium for a news conference outside of Rideau Cottage in Ottawa, Tuesday Nov. 24, 2020. (Adrian Wyld/The Canadian Press via AP)

FILE - In this Sept. 25, 2020, file photo, Florida Gov. Ron DeSantis announces the state's phase three openings at a news conference in St. Petersburg, Fla. As the summer coronavirus spike in Sunbelt states subsides, Florida has gone the furthest in lifting restrictions, especially on restaurants where the burden of ensuring safety has shifted to business owners and residents _ raising concerns of a resurgence. (John Pendygraft/Tampa Bay Times via AP, File)

People wearing face masks to help curb the spread of the coronavirus ride mopeds in Hanoi, Vietnam on Thursday, Aug. 6, 2020. Vietnamese health official said on Thursday the COVID-19 outbreak would peak in the coming ten days as the country reported another death and a score of new infections. (AP Photo/Hau Dinh)

A medical workers works in a COVID-19 set up for rapid new coronavirus testing in Vienna, Austria, Monday, Nov. 30, 2020. The Austrian government has moved to restrict freedom of movement for people, in an effort to slow the onset of the COVID-19 disease and the spread of the coronavirus. (AP Photo/Ronald Zak)

People wearing face masks to protect against the spred of the coronavirus, walk along a street in Hong Kong, Monday, Nov. 30, 2020. (AP Photo/Kin Cheung)

A health care worker direct a person to use a swab for a self administered test at the Miami-Dade County Youth Fairgrounds at Tamiami Park, on Sunday, Nov. 29, 2020 in Miami. (David Santiago/Miami Herald via AP)

Sikh devotees, some of them wearing masks offer prayers during celebrations to mark the birth anniversary of the first Sikh Guru, Guru Nanak Dev, at a Gurudwara, or Sikh temple, in Jammu, India, Monday, Nov.30, 2020. India is second behind the U.S. in total coronavirus cases. Its recovery rate is nearing 94%. (AP Photo/Channi Anand)

Britain's Prime Minister Boris Johnson holds a vial of the Oxford/AstraZeneca vaccine Covid-19 candidate vaccine, known as AZD1222, at Wockhardt's pharmaceutical manufacturing facility in Wrexham, Wales, Monday, Nov. 30, 2020. (Paul Ellis/PA via AP)

This photo from video provided by the Office of the Governor shows California Gov. Gavin Newsom during a virtual briefing from his home in Sacramento, Calif., Monday, Nov. 30, 2020. California could see a tripling of hospitalizations by Christmas and is considering stay-home orders for areas with the highest case rates as it tries to keep severe coronavirus cases from overwhelming intensive care beds. Gov. Gavin Newsom warned Monday that without more restrictions the current nearly 7,800 patients hospitalized with the coronavirus could double or triple in a month. But the biggest concern is intensive care cases, which increased by 67% in the last two weeks. (Office of the Governor via AP)

Medical personnel transfer a COVID-19 patient from a state to a private clinic which has been appropriated, in the northern city of Thessaloniki, Greece, Sunday, Nov. 29, 2020. Greece's Health ministry has forcibly appropriated two clinics and their staff in the country's second populated city, where the outbreak is the most severe. (AP Photo/Achilleas Chiras)

Barbara Roque, top left, holds up a sign during a Voice for Choice - Open Our Schools rally in Horsham, Pa., Sunday, Nov. 29, 2020. Joining her are her children, from left to right, Elaina, Emily, Erica and her husband, David. The group holding the event said their rally is about having the choice to choose from in-person Instruction or virtual. (David Maialetti/The Philadelphia Inquirer via AP)

Visitors wearing face masks to protect against the spread of the coronavirus walk through the colorful autumn leaves at the Kenchoji temple in Kamakura, Monday, Nov. 30, 2020. (AP Photo/Koji Sasahara)

People wait in front of heating stations to warm the COVID-19 test in a set up for rapid new coronavirus testing in Vienna, Austria, Monday, Nov. 30, 2020. The Austrian government has moved to restrict freedom of movement for people, in an effort to slow the onset of the COVID-19 disease and the spread of the coronavirus. (AP Photo/Ronald Zak)

A medical worker, left, tests a man for COVID-19 in a set up for rapid new coronavirus testing in Vienna, Austria, Monday, Nov. 30, 2020. The Austrian government has moved to restrict freedom of movement for people, in an effort to slow the onset of the COVID-19 disease and the spread of the coronavirus. (AP Photo/Ronald Zak)

Two employees look out over the closed ski resort at the Zugspitze in Grainau, Germany, Monday, Nov 30, 2020. The skiing areas are prepared but due to the Corona pandemic restrictions skiing is not allowed at the area. (Angelika Warmuth/dpa via AP)

A shopper walks to a retail store as information signs are displayed in Downers Grove, Ill., Sunday, Nov. 29, 2020. (AP Photo/Nam Y. Huh)

A person passes a sign with a message about wearing a face mask outside a church near Royal Columbia Hospital in New Westminster, British Columbia, on Sunday, Nov. 29, 2020. (Darryl Dyck/The Canadian Press via AP)

A medical worker, right, tries to test woman for COVID-19 in a set up for rapid new coronavirus testing in Vienna, Austria, Monday, Nov. 30, 2020. The Austrian government has moved to restrict freedom of movement for people, in an effort to slow the onset of the COVID-19 disease and the spread of the coronavirus. (AP Photo/Ronald Zak)

Women wearing face masks to help curb the spread of the coronavirus walk along a pedestrian bridge in Beijing, Monday, Nov. 30, 2020. (AP Photo/Andy Wong)

People wearing masks to help protect against the spread of coronavirus, walk along a popular street in Ankara, Turkey, Friday, Nov. 27, 2020. Turkey's COVID-19 fatalities continue to rise, hitting another record Sunday, Nov 29, 2020, with 185 new deaths. The Turkish government resumed reporting all positive cases this week after only reporting symptomatic patients for four months. Night-time curfews over the weekend are in effect for a second week across the country but media reports show packed public spaces during the day. (AP Photo/Burhan Ozbilici)

A man shows a negative COVID-19 test together with his cellphone QR code in a set up for rapid new coronavirus testing in Vienna, Austria, Monday, Nov. 30, 2020. The Austrian government has moved to restrict freedom of movement for people, in an effort to slow the onset of the COVID-19 disease and the spread of the coronavirus. (AP Photo/Ronald Zak)