Spencer Jensen, music teacher at the Legacy Preparatory Academy receives the COVID-19 vaccine at the Davis County Legacy Center Tuesday, Jan. 12, 2021, in Farmington, Utah. Utah began vaccinating teachers and school staff across the state. They are aiming to have all teachers and school staff vaccinated by the end of February. (AP Photo/Rick Bowmer)
Pre-kindergarten teacher Sarah McCarthy works with a student at Dawes Elementary in Chicago, Monday, Jan. 11, 2021. Chicago Public Schools students began their return to the classroom Monday as school doors opened to thousands of pre-kindergarten and some special education students after going remote last March due to the coronavirus pandemic. (Ashlee Rezin Garcia/Chicago Sun-Times via AP, Pool)
A pre-kindergarten student washes his hands at Dawes Elementary in Chicago, Monday, Jan. 11, 2021. Chicago Public Schools students began their return to the classroom Monday as school doors opened to thousands of pre-kindergarten and some special education students after going remote last March due to the coronavirus pandemic. (Ashlee Rezin Garcia/Chicago Sun-Times via AP, Pool)
Pre-kindergarten students listen as their teacher reads a story at Dawes Elementary in Chicago, Monday, Jan. 11, 2021. Chicago Public Schools students began their return to the classroom Monday as school doors opened to thousands of pre-kindergarten and some special education students after going remote last March due to the coronavirus pandemic. (Ashlee Rezin Garcia/Chicago Sun-Times via AP, Pool)
Residents Ken Fishman, 81, left, and Esther Wallach, 82, hold hands as they wait in line for the Pfizer-BioNTech COVID-19 vaccine at the The Palace assisted living facility, Tuesday, Jan. 12, 2021, in Coral Gables, Fla. (AP Photo/Lynne Sladky)
FILE - In this Dec. 22, 2020, file photo, registered nurses Robin Gooding, left, and Johanna Ortiz treat a COVID-19 patient at Providence Holy Cross Medical Center in the Mission Hills section of Los Angeles. Coronavirus deaths in the U.S. hit another one-day high on Tuesday, Jan. 12, 2021, at over 4,300 with the country’s attention focused largely on the fallout from the deadly uprising at the Capitol. (AP Photo/Jae C. Hong, File)
Cars pull in to nursing stations for the COVID-19 vaccine roll out at the Davis County Legacy Center Tuesday, Jan. 12, 2021, in Farmington, Utah. (AP Photo/Rick Bowmer)
Resident Gail Nanning, 83, receives the Pfizer-BioNTech COVID-19 vaccine at the The Palace assisted living facility, Tuesday, Jan. 12, 2021, in Coral Gables, Fla. (AP Photo/Lynne Sladky)
Residents wait to be cleared after receiving the Pfizer-BioNTech COVID-19 vaccine at the The Palace assisted living facility, Tuesday, Jan. 12, 2021, in Coral Gables, Fla. (AP Photo/Lynne Sladky)
James Lennox, IT technical support specialist for the Utah School for the Deaf and Blind, gets the COVID-19 vaccine at the Davis County Legacy Center Tuesday, Jan. 12, 2021, in Farmington, Utah. Utah began vaccinating teachers and school staff across the state. They are aiming to have all teachers and school staff vaccinated by the end of February. (AP Photo/Rick Bowmer)
Teacher Lisa Egan claps after she receives the Moderna coronavirus vaccine at a clinic organized by New York City's Department of Health, Monday, Jan. 11, 2021. "I feel so great, so lucky," she said. "I've been teaching remotely. I'm hoping now I can go back to the classroom." Monday was the first day that people over 75 and essential workers — including police officers, firefighters, and teachers — were allowed to receive the vaccines in New York. (AP Photo/Mark Lennihan)
Seniors wait to be vaccinated against COVID-19 at a New York State vaccination site in the Jacob K. Javits Convention Center, Wednesday, Jan. 13, 2021, in New York. New York state expanded COVID-19 vaccine distribution Tuesday to people 65 and over, increasing access to an already short supply of doses being distributed. (AP Photo/Mary Altaffer)
A member of the National Guard directs seniors as they arrive to be vaccinated against COVID-19 at a New York State vaccination site in the Jacob K. Javits Convention Center, Wednesday, Jan. 13, 2021, in New York. New York state expanded COVID-19 vaccine distribution Tuesday to people 65 and over, increasing access to an already short supply of doses being distributed. (AP Photo/Mary Altaffer)
Several tents are set up so people who have registered can get their COVID-19 vaccinations as they drive-thru the parking lot of the State Farm Stadium, Tuesday, Jan. 12, 2021, in Glendale, Ariz. The Arizona Cardinals' stadium opened as a vaccination site Monday that will be a 24-7 operation. (AP Photo/Ross D. Franklin)