A "liquidation sale" sign is seen inside a shuttered Walgreens store and pharmacy in Somerville, Massachusetts, U.S., September 1, 2022. REUTERS/Brian Snyder 

Empty shelves show a shortage of baby formula at a Walgreens store in San Antonio, Texas, U.S. May 10, 2022. REUTERS/Kaylee Greenlee Beal 

People walk by a Duane Reade pharmacy, owned by the Walgreens Boots Alliance, Inc., in Manhattan, New York City, U.S., November 26, 2021. REUTERS/Andrew Kelly 

Signage is seen outside of a Walgreens, owned by the Walgreens Boots Alliance, Inc., in Manhattan, New York City, U.S., November 26, 2021. REUTERS/Andrew Kelly 

People walk by a Walgreens, owned by the Walgreens Boots Alliance, Inc., in Manhattan, New York City, U.S., November 26, 2021. REUTERS/Andrew Kelly 

Pigeons are seen resting on signage for Walgreens, owned by the Walgreens Boots Alliance, Inc., in Manhattan, New York City, U.S., November 26, 2021. REUTERS/Andrew Kelly 

A person is seen shopping in Walgreens, owned by the Walgreens Boots Alliance, Inc., in Manhattan, New York City, U.S., November 26, 2021. REUTERS/Andrew Kelly 

People walk by a Walgreens, owned by the Walgreens Boots Alliance, Inc., in Manhattan, New York City, U.S., November 26, 2021. REUTERS/Andrew Kelly 

Signage is seen outside of a Walgreens, owned by the Walgreens Boots Alliance, Inc., in Manhattan, New York City, U.S., November 26, 2021. REUTERS/Andrew Kelly 

A person takes an escalator past a Walgreens, owned by the Walgreens Boots Alliance, Inc., in Manhattan, New York City, U.S., November 26, 2021. REUTERS/Andrew Kelly 

Walgreens brand Allergy Nasal Spray, owned by the Walgreens Boots Alliance, Inc., is seen for sale in Manhattan, New York City, U.S., November 26, 2021. REUTERS/Andrew Kelly 

People are seen shopping in a Walgreens, owned by the Walgreens Boots Alliance, Inc., in Manhattan, New York City, U.S., November 26, 2021. REUTERS/Andrew Kelly 

Signage is seen outside of a Walgreens, owned by the Walgreens Boots Alliance, Inc., in Manhattan, New York City, U.S., November 26, 2021. REUTERS/Andrew Kelly 

A person rides past a Walgreens truck, owned by the Walgreens Boots Alliance, Inc., in Manhattan, New York City, U.S., November 26, 2021. REUTERS/Andrew Kelly 

A Walgreens sign is pictured with pigeons sitting on it in the Manhattan borough of New York City, New York, U.S., November 18, 2021. REUTERS/Carlo Allegri 

The combination photo shows a logo of CVS in Manhattan, New York, U.S., August 1, 2016, re-usable Walmart bags in a newly opened Walmart Neighborhood Market in Chicago September 21, 2011 and a Walgreens sign in the Chicago suburb of Niles, Illinois, February 10, 2015. REUTERS/Andrew Kelly/Jim Young 

Walgreens healthcare professional Luis S. Solano prepares a dose of the Pfizer-BioNTec vaccine against coronavirus disease (COVID-19) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Walgreens healthcare professional Luis S. Solano prepares a dose of the Pfizer-BioNTec vaccine against coronavirus disease (COVID-19) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Walgreens healthcare professional Luis S. Solano prepares a dose of the Pfizer-BioNTec vaccine against coronavirus disease (COVID-19) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Walgreens healthcare professional Luis S. Solano prepares a dose of the Pfizer-BioNTec vaccine against coronavirus disease (COVID-19) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Walgreens healthcare professionals pass to each other the Pfizer-BioNTec vaccine against coronavirus disease (COVID-19) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Valerie Al-Barakat (R) receives the Pfizer-BioNTech vaccine against coronavirus disease (COVID-19) from Walgreens healthcare professional Ghassan Ayyad (L) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Elizabeth Harris-Penick (R) receives the Pfizer-BioNTech vaccine against coronavirus disease (COVID-19) from Walgreens healthcare professional Ghassan Ayyad (L) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Lillie McCray (R) receives the Pfizer-BioNTech vaccine against coronavirus disease (COVID-19) from Walgreens healthcare professional Ghassan Ayyad (L) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Lillie McCray (R) receives the Pfizer-BioNTech vaccine against coronavirus disease (COVID-19) from Walgreens healthcare professional Ghassan Ayyad (L) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Walgreens healthcare professional Luis S. Solano holds a vial of the Pfizer-BioNTech vaccine against coronavirus disease (COVID-19) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Margie Collins (R) receives the Pfizer-BioNTech vaccine against coronavirus disease (COVID-19) from Walgreens healthcare professional Ghassan Ayyad (L) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Austin Clark (R) receives the Pfizer-BioNTech vaccine against coronavirus disease (COVID-19) from Walgreens healthcare professional Ghassan Ayyad (L) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Lorine Jefferson (L) receives the Pfizer-BioNTech vaccine against coronavirus disease (COVID-19) from Walgreens healthcare professional Ghassan Ayyad (R) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Cordell Reid (L) receives the Pfizer-BioNTech vaccine against coronavirus disease (COVID-19) from Walgreens healthcare professional Ghassan Ayyad (R) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Bruce A. McGehee (L) receives the Pfizer-BioNTech vaccine against coronavirus disease (COVID-19) from Walgreens healthcare professional Ghassan Ayyad (R) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Michael Nash (R) receives the Pfizer-BioNTech vaccine against coronavirus disease (COVID-19) from Walgreens healthcare professional Ghassan Ayyad (L) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

A man receives the Pfizer-BioNTech vaccine against coronavirus disease (COVID-19) from Walgreens healthcare professional Ghassan Ayyad (L) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Lashon Parker receives the Pfizer-BioNTech vaccine against coronavirus disease (COVID-19) from Walgreens healthcare professional at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

Austin Clark (R) receives the Pfizer vaccine against coronavirus disease (COVID-19) from Walgreens healthcare professional Ghassan Ayyad (L) at the Victor Walchirk Apartments in Evanston, Illinois, U.S. February 22, 2021. REUTERS/Kamil Krzaczynski 

The Moderna coronavirus disease (COVID-19) vaccine is seen at a Walgreens store in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

Pharmacy manager Jayme Strnatka prepares a coronavirus disease (COVID-19) vaccine at a Walgreens store in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

Pharmacy manager Jayme Strnatka prepares a coronavirus disease (COVID-19) vaccine at a Walgreens store in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

Pharmacy manager Jayme Strnatka prepares a coronavirus disease (COVID-19) vaccine at a Walgreens store in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

Pharmacy manager Jayme Strnatka prepares a coronavirus disease (COVID-19) vaccine at a Walgreens store in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

Pharmacy manager Jayme Strnatka (right) inoculates pre-school teacher Morgan DiFonzo, 25, against the coronavirus disease (COVID-19) at a Walgreens store in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

Pharmacy manager Jayme Strnatka (right) inoculates pre-school teacher Morgan DiFonzo, 25, against the coronavirus disease (COVID-19) at a Walgreens store in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar TPX IMAGES OF THE DAY 

People work behind a pharmacy counter at a Walgreens store in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

Pharmacy manager Jayme Strnatka (right) inoculates pre-school teacher Morgan DiFonzo, 25, against the coronavirus disease (COVID-19) at a Walgreens store in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

Pharmacy manager Jayme Strnatka works behind the pharmacy counter at a Walgreens store in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

A Walgreens store is seen in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

A Walgreens store is seen in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

A Walgreens store is seen in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

A Walgreens store is seen in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

A Walgreens store is seen in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

A Walgreens store is seen in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

Pharmacy manager Jayme Strnatka works behind the pharmacy counter at a Walgreens store in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

Pharmacy manager Jayme Strnatka works behind the pharmacy counter at a Walgreens store in Chicago, Illinois, U.S. February 11, 2021. REUTERS/Eileen T. Meslar 

Walgreens pharmacists prepare to administer shots of the coronavirus disease (COVID-19) vaccine to residents at King David Center for Nursing and Rehabilitation, a nursing home facility, in Brooklyn's Bath Beach neighborhood in New York City, U.S. January 6, 2021. REUTERS/Yuki Iwamura 

Walgreens pharmacists prepare shots of the coronavirus disease (COVID-19) vaccine at King David Center for Nursing and Rehabilitation, a nursing home facility, in Brooklyn's Bath Beach neighborhood in New York City, U.S. January 6, 2021. REUTERS/Yuki Iwamura 

A Walgreens pharmacist wears gloves before administering a shot of the coronavirus disease (COVID-19) vaccine at King David Center for Nursing and Rehabilitation, a nursing home facility, in Brooklyn's Bath Beach neighborhood in New York City, U.S. January 6, 2021. REUTERS/Yuki Iwamura 

Walgreens pharmacists prepare for shots of the coronavirus disease (COVID-19) vaccine to be given to residents at King David Center for Nursing and Rehabilitation, a nursing home facility, in Brooklyn's Bath Beach neighborhood in New York City, U.S. January 6, 2021. REUTERS/Yuki Iwamura 

Walgreens pharmacists prepare to give shots of the coronavirus disease (COVID-19) vaccine to residents at King David Center for Nursing and Rehabilitation, a nursing home facility, in Brooklyn's Bath Beach neighborhood in New York City, U.S. January 6, 2021. REUTERS/Yuki Iwamura 

A Walgreens Pharmacist prepares for the administering of coronavirus disease (COVID-19) vaccine shots at King David Center for Nursing and Rehabilitation, a nursing home facility, in Brooklyn's Bath Beach neighborhood in New York City, U.S. January 6, 2021. REUTERS/Yuki Iwamura 

A resident at Hamilton Park Nursing and Rehabilitation, a nursing home facility, receives the Pfizer-BioNTech coronavirus disease (COVID-19) vaccine from Walgreens Pharmacists in Brooklyn, New York, U.S., January 4, 2021. REUTERS/Yuki Iwamura