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FILE - In this Feb. 17, 2021, file photo, people receive the COVID-19 vaccine at a vaccination site in Las Vegas. Nevada's top coronavirus official didn't guarantee the state can meet President Joe Biden's goal of offering a vaccination to every adult who wants a shot by May 1, but said it gives everyone something to work toward. COVID-19 Task Force chief Caleb Cage said everything depends on vaccine allocations. Seventeen new COVID-19 deaths were reported statewide Friday, March 12, 2021, bringing the pandemic total in Nevada to almost 5,100. (AP Photo/John Locher, File)

FILE - In this Feb. 17, 2021, file photo, people receive the COVID-19 vaccine at a vaccination site in Las Vegas. Nevada's top coronavirus official didn't guarantee the state can meet President Joe Biden's goal of offering a vaccination to every adult who wants a shot by May 1, but said it gives everyone something to work toward. COVID-19 Task Force chief Caleb Cage said everything depends on vaccine allocations. Seventeen new COVID-19 deaths were reported statewide Friday, March 12, 2021, bringing the pandemic total in Nevada to almost 5,100. (AP Photo/John Locher, File)

Mar. 12, 2021 07:27 PM EST
FILE - In this Friday, Feb. 19, 2021, file photo, medical transporter Adrian Parrilla moves a patient into a COVID-19 unit at Mission Hospital in Mission Viejo, Calif. There are 3,250 people hospitalized statewide, a drop of more than 85% since peaking around 22,000 in early January, the state Department of Public Health reported Saturday, March 13, 2021. (AP Photo/Jae C. Hong, File)

FILE - In this Friday, Feb. 19, 2021, file photo, medical transporter Adrian Parrilla moves a patient into a COVID-19 unit at Mission Hospital in Mission Viejo, Calif. There are 3,250 people hospitalized statewide, a drop of more than 85% since peaking around 22,000 in early January, the state Department of Public Health reported Saturday, March 13, 2021. (AP Photo/Jae C. Hong, File)

Mar. 13, 2021 07:58 PM EST
A member of the Army National Guard takes the temperatures of teachers arriving at the Northwest Tri-County Intermediate Unit 5 in Edinboro, Pa., for a COVID-19 vaccine clinic on Saturday, March 13, 2021. The clinic is for pre-K through 12th grade teachers and staff from Erie, Crawford, and Warren counties. (Jack Hanrahan/Erie Times-News via AP)

A member of the Army National Guard takes the temperatures of teachers arriving at the Northwest Tri-County Intermediate Unit 5 in Edinboro, Pa., for a COVID-19 vaccine clinic on Saturday, March 13, 2021. The clinic is for pre-K through 12th grade teachers and staff from Erie, Crawford, and Warren counties. (Jack Hanrahan/Erie Times-News via AP)

Mar. 13, 2021 11:46 AM EST
Information signs are displayed at a Chicago New Star Realty office in Northbrook, Ill., Saturday, March 13, 2021. U.S. long-term mortgage rates again rose modestly this week against the backdrop of an improving economy and further distribution of coronavirus vaccines. Rates remain near historic lows, however. The benchmark 30-year loan stayed above the 3% mark, a level it breached last week for the first time since July 2020. (AP Photo/Nam Y. Huh)

Information signs are displayed at a Chicago New Star Realty office in Northbrook, Ill., Saturday, March 13, 2021. U.S. long-term mortgage rates again rose modestly this week against the backdrop of an improving economy and further distribution of coronavirus vaccines. Rates remain near historic lows, however. The benchmark 30-year loan stayed above the 3% mark, a level it breached last week for the first time since July 2020. (AP Photo/Nam Y. Huh)

Mar. 13, 2021 07:55 PM EST
People stroll in the Navigli popular area Milan, Italy, Saturday, March 13, 2021. From Monday most of Northern Italy will become "red zone" with stricter rules aimed at curbing the spread of Covid-19, which is skyrocketing due to the variants. (Claudio Furlan/LaPresse via AP)

People stroll in the Navigli popular area Milan, Italy, Saturday, March 13, 2021. From Monday most of Northern Italy will become "red zone" with stricter rules aimed at curbing the spread of Covid-19, which is skyrocketing due to the variants. (Claudio Furlan/LaPresse via AP)

Mar. 13, 2021 12:40 PM EST
Surfers strike a pose as a mix of spring breakers, families, locals and others take advantage of the mild temperatures at Cocoa Beach, Fla., Friday, March 12, 2021. (Stephen M. Dowell /Orlando Sentinel via AP)

Surfers strike a pose as a mix of spring breakers, families, locals and others take advantage of the mild temperatures at Cocoa Beach, Fla., Friday, March 12, 2021. (Stephen M. Dowell /Orlando Sentinel via AP)

Mar. 13, 2021 09:40 AM EST
A man receives the Sputnik-V COVID-19 vaccine at the Ariana hospital, in Tunis Tunisia, Saturday, March 13, 2021. Tunisia launched its vaccination campaign on Saturday, after receiving the first 30,000 doses of Russia's Sputnik V coronavirus vaccines earlier this week. (AP Photo/Hassene Dridi)

A man receives the Sputnik-V COVID-19 vaccine at the Ariana hospital, in Tunis Tunisia, Saturday, March 13, 2021. Tunisia launched its vaccination campaign on Saturday, after receiving the first 30,000 doses of Russia's Sputnik V coronavirus vaccines earlier this week. (AP Photo/Hassene Dridi)

Mar. 13, 2021 07:28 AM EST
Police check people who want to leave Wiener Neustadt, Austria, Saturday, March 13, 2021. The city of Wiener Neustadt near Vienna may only be left with a negative COVID-19 coronavirus test. (AP Photo/Ronald Zak)

Police check people who want to leave Wiener Neustadt, Austria, Saturday, March 13, 2021. The city of Wiener Neustadt near Vienna may only be left with a negative COVID-19 coronavirus test. (AP Photo/Ronald Zak)

Mar. 13, 2021 05:24 AM EST
A person holds a flag with some of the words of the Second Amendment to the U.S. Constitution on it, Saturday, March 13, 2021, during a rally at a park in Olympia, Wash., protesting business and school closures and other restrictions related to the COVID-19 pandemic. Several dozen people also gathered earlier at the Capitol in support of open-carry gun rights. (AP Photo/Ted S. Warren)

A person holds a flag with some of the words of the Second Amendment to the U.S. Constitution on it, Saturday, March 13, 2021, during a rally at a park in Olympia, Wash., protesting business and school closures and other restrictions related to the COVID-19 pandemic. Several dozen people also gathered earlier at the Capitol in support of open-carry gun rights. (AP Photo/Ted S. Warren)

Mar. 13, 2021 09:05 PM EST
A police officer patrols in the Chatelet area amidst the new coronavirus pandemic, in Paris, Saturday, March 13, 2021. (AP Photo/Thibault Camus)

A police officer patrols in the Chatelet area amidst the new coronavirus pandemic, in Paris, Saturday, March 13, 2021. (AP Photo/Thibault Camus)

Mar. 13, 2021 10:11 AM EST
In this handout photo released by Georgian Health Ministry, airport workers unload the first shipment of AstraZeneca COVID-19 vaccine at the International Airport outside in Tbilisi, Georgia, Saturday, March 13, 2021. Georgia, the last country in Europe to receive COVID vaccine, got the first batch of 42,000 AstroZeneca shots via the COVAX program. (Georgian Health Ministry via AP)

In this handout photo released by Georgian Health Ministry, airport workers unload the first shipment of AstraZeneca COVID-19 vaccine at the International Airport outside in Tbilisi, Georgia, Saturday, March 13, 2021. Georgia, the last country in Europe to receive COVID vaccine, got the first batch of 42,000 AstroZeneca shots via the COVAX program. (Georgian Health Ministry via AP)

Mar. 13, 2021 03:12 AM EST
Former Brazilian President Luiz Inacio Lula da Silva, left, shows his vaccination document after getting a shot of the the Sinovac COVID-19 vaccine at a drive-thru site in Sao Bernardo do Campo, Sao Paulo state, Brazil, Saturday, March 13, 2021. (AP Photo/Andre Penner)

Former Brazilian President Luiz Inacio Lula da Silva, left, shows his vaccination document after getting a shot of the the Sinovac COVID-19 vaccine at a drive-thru site in Sao Bernardo do Campo, Sao Paulo state, Brazil, Saturday, March 13, 2021. (AP Photo/Andre Penner)

Mar. 13, 2021 08:48 AM EST
FILE - In this Feb. 10, 2021, file photo, people receive a COVID-19 vaccine at the Martin Luther King Senior Center in North Las Vegas. Nevada's top coronavirus official didn't guarantee the state can meet President Joe Biden's goal of offering a vaccination to every adult who wants a shot by May 1, but said it gives everyone something to work toward. COVID-19 Task Force chief Caleb Cage said everything depends on vaccine allocations. Seventeen new COVID-19 deaths were reported statewide Friday, March 12, 2021, bringing the pandemic total in Nevada to almost 5,100. (AP Photo/John Locher, File)

FILE - In this Feb. 10, 2021, file photo, people receive a COVID-19 vaccine at the Martin Luther King Senior Center in North Las Vegas. Nevada's top coronavirus official didn't guarantee the state can meet President Joe Biden's goal of offering a vaccination to every adult who wants a shot by May 1, but said it gives everyone something to work toward. COVID-19 Task Force chief Caleb Cage said everything depends on vaccine allocations. Seventeen new COVID-19 deaths were reported statewide Friday, March 12, 2021, bringing the pandemic total in Nevada to almost 5,100. (AP Photo/John Locher, File)

Mar. 12, 2021 07:28 PM EST