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This photo provided by Pfizer in August 2024 shows a packaging for the company's updated COVID vaccine for ages 12 and up, approved by the U.S. Food and Drug Administration on Thursday, Aug. 22, 2024. (Steven Decroos/Pfizer via AP)
This photo provided by Moderna in August 2024 shows packaging and syringes for the company's updated COVID vaccine for ages 12 and older approved by the U.S. Food and Drug Administration on Thursday, Aug. 22, 2024. (Moderna via AP)
This photo provided by Pfizer in August 2024 shows a vial of the company's updated COVID vaccine for ages 6 months-5 years old, approved by the U.S. Food and Drug Administration on Thursday, Aug. 22, 2024. (Steven Decroos/Pfizer via AP)
This photo provided by Pfizer in August 2024 shows a vial of the company's updated COVID vaccine for ages 5-11, approved by the U.S. Food and Drug Administration on Thursday, Aug. 22, 2024. (Steven Decroos/Pfizer via AP)
FILE - Pre-loaded syringes of the COVID-19 vaccine are ready for use in New Orleans on Jan. 25, 2022. (AP Photo/Ted Jackson, File)
This photo provided by Moderna in August 2024 shows packaging and syringes for the company's updated COVID vaccine for ages 12 and older approved by the U.S. Food and Drug Administration on Thursday, Aug. 22, 2024. (Moderna via AP)
This photo provided by Moderna in August 2024 shows packaging and a syringe for the company's updated COVID vaccine for ages 12 and older approved by the U.S. Food and Drug Administration on Thursday, Aug. 22, 2024. (Moderna via AP)