Angela Hayes, a nurse practitioner with Jefferson County Public Schools, prepares vaccines for students at Newcomer Academy in Louisville, Ky., on Thursday, Aug. 8, 2024. (AP Photo/Mary Conlon)
Dr. Mandy Cohen, director for the Centers for Disease Control and Prevention, receives a tour at the Louisville Metro Department of Public Health and Wellness in Louisville, Ky., on Thursday, Aug. 8, 2024. (AP Photo/Mary Conlon)
Vaccines are prepared for students during a pop-up immunization clinic at the Newcomer Academy in Louisville, Ky., on Thursday, Aug. 8, 2024. (AP Photo/Mary Conlon)
Chanel Ferran Gutierrez, a 10th grade student at Newcomer Academy, prepares to be vaccinated during a pop-up immunization clinic in the school's library in Louisville, Ky., on Thursday, Aug. 8, 2024. (AP Photo/Mary Conlon)