Dr. Richard Dang, assistant professor USC School of Pharmacy administers COVID-19 vaccine to Ashley Van Dyke (L) as mass-vaccination of healthcare workers takes place at Dodger Stadium in Los Angeles, California, U.S., January 15, 2021. Irfan Khan/Pool via REUTERS

A CalFire firefighter is administered his first dose of the Moderna vaccine in his arm by a CalFire Emergency Medical Technician during the outbreak of the coronavirus disease (COVID-19) in El Cajon, California, U.S., January 15, 2021. REUTERS/Mike Blake

Health workers are seen while transporting patients to a Brazilian Air Force airplane before being moved to Maranhao state, amid the coronavirus disease (COVID-19) outbreak in Manaus, Brazil January 15, 2021. REUTERS/Bruno Kelly

A health worker helps a COVID-19 patient board a Brazilian Air Force airplane, before being moved to Maranhao state, amid the coronavirus disease (COVID-19) outbreak in Manaus, Brazil January 15, 2021. REUTERS/Bruno Kelly

A health worker helps a COVID-19 patient board a Brazilian Air Force airplane before being moved to Maranhao state, amid the coronavirus disease (COVID-19) outbreak in Manaus, Brazil January 15, 2021. REUTERS/Bruno Kelly

A health worker holds an oxygen cylinder while transporting COVID-19 patients to a Brazilian Air Force airplane before being moved to Maranhao state, amid the coronavirus disease (COVID-19) outbreak in Manaus, Brazil January 15, 2021. REUTERS/Bruno Kelly

Health workers transport a COVID-19 patient to a Brazilian Air Force airplane before being moved to Maranhao state, amid the coronavirus disease (COVID-19) outbreak in Manaus, Brazil January 15, 2021. REUTERS/Bruno Kelly

Health workers transport a COVID-19 patient to a Brazilian Air Force airplane before being moved to Maranhao state, amid the coronavirus disease (COVID-19) outbreak in Manaus, Brazil January 15, 2021. REUTERS/Bruno Kelly

Health workers transport a COVID-19 patient to a Brazilian Air Force airplane before being moved to Maranhao state, amid the coronavirus disease (COVID-19) outbreak in Manaus, Brazil January 15, 2021. REUTERS/Bruno Kelly

Health workers transport a COVID-19 patient to a Brazilian Air Force airplane before being moved to Maranhao state, amid the coronavirus disease (COVID-19) outbreak in Manaus, Brazil January 15, 2021. REUTERS/Bruno Kelly

People run past a burning barricade during protests demanding Haiti's President Jovenel Moise to step down, in Port-au-Prince, Haiti January 15, 2021. REUTERS/Jeanty Junior Augustin

A demonstrator wears a shirt reading "Everyone's life matters" while standing in front of a burning barricade during protests demanding Haiti's President Jovenel Moise to step down, in Port-au-Prince, Haiti January 15, 2021. REUTERS/Jeanty Junior Augustin

Firefighters walk among white smoke after extinguishing a burning barricade made out of tyres, during protests demanding Haiti's President Jovenel Moise to step down, in Port-au-Prince, Haiti January 15, 2021. REUTERS/Jeanty Junior Augustin

Police detain a man during protests demanding Haiti's President Jovenel Moise to step down, in Port-au-Prince, Haiti January 15, 2021. REUTERS/Jeanty Junior Augustin

Police detain a man during protests demanding Haiti's President Jovenel Moise to step down, in Port-au-Prince, Haiti January 15, 2021. REUTERS/Jeanty Junior Augustin

A man with two children run past a burning barricade during protests demanding Haiti's President Jovenel Moise to step down, in Port-au-Prince, Haiti January 15, 2021. REUTERS/Jeanty Junior Augustin

A supporter shows a photograph of Haiti's former President Jean-Bertrande Aristide during protests demanding Haiti's President Jovenel Moise to step down, in Port-au-Prince, Haiti January 15, 2021. REUTERS/Jeanty Junior Augustin

A demonstrator holds a plastic bottle with gasoline while standing in front of a burning barricade during protests demanding Haiti's President Jovenel Moise to step down, in Port-au-Prince, Haiti January 15, 2021. REUTERS/Jeanty Junior Augustin

Demonstrators set up a burning barricade during protests demanding Haiti's President Jovenel Moise to step down, in Port-au-Prince, Haiti January 15, 2021. REUTERS/Jeanty Junior Augustin

A woman talks to a worker behind a locked gate inside the 24 hour New York State coronavirus disease (COVID-19) mass vaccination site at the Brooklyn Army Terminal, the site was closed after running out of vaccine doses, in Brooklyn, New York, U.S., January 15, 2021. REUTERS/Brendan McDermid

A man uses his phone after being turned away for an appointment at the 24 hour New York State coronavirus disease (COVID-19) mass vaccination site at the Brooklyn Army Terminal, the site was closed after running out of vaccine doses, in Brooklyn, New York, U.S., January 15, 2021. REUTERS/Brendan McDermid

A man uses his phone after being turned away for an appointment at the 24 hour New York State coronavirus disease (COVID-19) mass vaccination site at the Brooklyn Army Terminal, the site was closed after running out of vaccine doses, in Brooklyn, New York, U.S., January 15, 2021. REUTERS/Brendan McDermid

A worker is seen inside the 24 hour New York State coronavirus disease (COVID-19) mass vaccination site at the Brooklyn Army Terminal, the site was closed after running out of vaccine doses, in Brooklyn, New York, U.S., January 15, 2021. REUTERS/Brendan McDermid

A chain is seen on the gate at the 24 hour New York State coronavirus disease (COVID-19) mass vaccination site at the Brooklyn Army Terminal, the site was closed after running out of vaccine doses, in Brooklyn, New York, U.S., January 15, 2021. REUTERS/Brendan McDermid

Secret Service members walk National Guard troops through the White House grounds in Washington, U.S., January 15, 2021. REUTERS/Erin Scott

Secret Service members walk National Guard troops through the White House grounds in Washington, U.S., January 15, 2021. REUTERS/Erin Scott

A person carries a box out of the Eisenhower Executive Office Building on the White House grounds in Washington, U.S., January 15, 2021. REUTERS/Erin Scott

A staff member dressed as a raptor interacts with visitors during the Jurassic Quest drive-thru Experience outside The Rose Bowl Stadium during the outbreak of the coronavirus disease (COVID-19), in Pasadena, California, U.S., January 15, 2021. REUTERS/Mario Anzuoni

Workers roll up a rug from the West Wing of the White House in Washington, U.S., January 15, 2021. REUTERS/Erin Scott

A person with the National Archives and Records Administration carries a large hammer engraved with the word "Trump" at the White House in Washington, U.S., January 15, 2021. REUTERS/Erin Scott

Andrew Giuliani, special assistant to U.S. President Donald Trump and son of Rudy Giuliani, speaks to a Secret Service officer outside the West Wing of the White House in Washington, U.S., January 15, 2021. REUTERS/Erin Scott

Andrew Giuliani, special assistant to U.S. President Donald Trump and son of Rudy Giuliani, holds a signed helmet as he looks toward the White House in Washington, U.S., January 15, 2021. REUTERS/Erin Scott

A boy looks at a dinosaur at the Jurassic Quest drive-thru Experience outside The Rose Bowl Stadium during the outbreak of the coronavirus disease (COVID-19), in Pasadena, California, U.S., January 15, 2021. REUTERS/Mario Anzuoni

Samantha Bailey takes a selfie with a staff member dressed like a raptor at the Jurassic Quest drive-thru Experience outside The Rose Bowl Stadium during the outbreak of the coronavirus disease (COVID-19), in Pasadena, California, U.S., January 15, 2021. REUTERS/Mario Anzuoni TPX IMAGES OF THE DAY

Hudson Mahaffay reacts to a staff member dressed like a raptor at the Jurassic Quest drive-thru Experience outside The Rose Bowl Stadium during the outbreak of the coronavirus disease (COVID-19), in Pasadena, California, U.S., January 15, 2021. REUTERS/Mario Anzuoni

A staff member dressed as a raptor sits during the Jurassic Quest drive-thru Experience outside The Rose Bowl Stadium during the outbreak of the coronavirus disease (COVID-19), in Pasadena, California, U.S., January 15, 2021. REUTERS/Mario Anzuoni

People drive through the Jurassic Quest Experience outside The Rose Bowl Stadium during the outbreak of the coronavirus disease (COVID-19), in Pasadena, California, U.S., January 15, 2021. REUTERS/Mario Anzuoni

A staff member carries a mock baby dinosaur at the Jurassic Quest drive-thru Experience outside The Rose Bowl Stadium during the outbreak of the coronavirus disease (COVID-19), in Pasadena, California, U.S., January 15, 2021. REUTERS/Mario Anzuoni

People drive through the Jurassic Quest Experience outside The Rose Bowl Stadium during the outbreak of the coronavirus disease (COVID-19), in Pasadena, California, U.S., January 15, 2021. REUTERS/Mario Anzuoni

People drive through the Jurassic Quest Experience outside The Rose Bowl Stadium during the outbreak of the coronavirus disease (COVID-19), in Pasadena, California, U.S., January 15, 2021. REUTERS/Mario Anzuoni

A person poses for a photo by a Tyrannosaurus at the Jurassic Quest drive-thru Experience outside The Rose Bowl Stadium during the outbreak of the coronavirus disease (COVID-19), in Pasadena, California, U.S., January 15, 2021. REUTERS/Mario Anzuoni

People drive through the Jurassic Quest Experience outside The Rose Bowl Stadium during the outbreak of the coronavirus disease (COVID-19), in Pasadena, California, U.S., January 15, 2021. REUTERS/Mario Anzuoni

Officers from the National Guard check in their weapons at the Capitol Building in Washington D.C., days ahead of U.S. President-elect Joe Biden's inauguration, U.S. January 15, 2021. REUTERS/Brandon Bell

Officers from the National Guard have lunch on Capitol grounds in Washington D.C., days ahead of U.S. President-elect Joe Biden's inauguration, U.S. January 15, 2021. REUTERS/Brandon Bell

Officers from the National Guard walk near a fence lined with barbed wire at the Capitol grounds in Washington D.C., days ahead of U.S. President-elect Joe Biden's inauguration, U.S. January 15, 2021. REUTERS/Brandon Bell

Officers from the National Guard gather on Capitol grounds in Washington D.C., days ahead of U.S. President-elect Joe Biden's inauguration, U.S. January 15, 2021. REUTERS/Brandon Bell

People walk in front of the New York Stock Exchange (NYSE) in New York, U.S., January 15, 2021. REUTERS/Brendan McDermid

Trader Frank Masiello talks on his phone on Wall St. outside the New York Stock Exchange (NYSE) in New York, U.S., January 15, 2021. REUTERS/Brendan McDermid

Trader Frank Masiello talks on his phone on Wall St. outside the New York Stock Exchange (NYSE) in New York, U.S., January 15, 2021. REUTERS/Brendan McDermid

Trader Frank Masiello talks on his phone on Wall St. outside the New York Stock Exchange (NYSE) in New York, U.S., January 15, 2021. REUTERS/Brendan McDermid

Trader Frank Masiello talks on his phone on Wall St. outside the New York Stock Exchange (NYSE) in New York, U.S., January 15, 2021. REUTERS/Brendan McDermid

Trader Frank Masiello talks on his phone on Wall St. outside the New York Stock Exchange (NYSE) in New York, U.S., January 15, 2021. REUTERS/Brendan McDermid

Trader Frank Masiello talks on his phone on Wall St. outside the New York Stock Exchange (NYSE) in New York, U.S., January 15, 2021. REUTERS/Brendan McDermid

U.S. President-elect Joe Biden speaks about his plan to administer coronavirus disease (COVID-19) vaccines to the U.S. population during a news conference at Biden's transition headquarters in Wilmington, Delaware, U.S., January 15, 2021. REUTERS/Kevin Lamarque

Officers from the National Guard check their weapons at the Capitol Building in Washington D.C., days ahead of U.S. President-elect Joe Biden's inauguration, U.S. January 15, 2021. REUTERS/Brandon Bell

People drive through the Jurassic Quest Experience outside The Rose Bowl Stadium during the outbreak of the coronavirus disease (COVID-19), in Pasadena, California, U.S., January 15, 2021. REUTERS/Mario Anzuoni

Officers from the National Guard have their lunch on the Capitol grounds in Washington D.C., days ahead of U.S. President-elect Joe Biden's inauguration, U.S. January 15, 2021. REUTERS/Brandon Bell

White House advisor Peter Navarro leaves the West Wing carrying a poster board displaying claims of voting irregularity at the White House in Washington, U.S., January 15, 2021. REUTERS/Erin Scott

Officers from the National Guard gather for lunch on the Capitol grounds in Washington D.C., days ahead of U.S. President-elect Joe Biden's inauguration, U.S. January 15, 2021. REUTERS/Brandon Bell