; (iv) advanced research and development of flexible medical countermeasures against priority respiratory virus families and other respiratory viral pathogens with a significant potential to cause a pandemic, with both pathogen-specific and pathogen-agnostic approaches; and ; and (2) in subparagraph (F)— (A) in clause (ii), by striking ; and at the end and inserting a semicolon; (B) in clause (iii), by striking the period and inserting ; and ; and (C) by adding at the end the following: (iv) priority virus families and other viral pathogens with a significant potential to cause a pandemic. . (b) Authorization of appropriations Section 319L(d)(2) of the Public Health Service Act (42 U.S.C. 247d–7e(d)(2)) is amended by striking $611,700,000 for each of fiscal years 2019 through 2023 and inserting $950,000,000 for each of fiscal years 2024 through 2028 . (c) Inapplicability of certain provisions sunset Section 319L(e)(1)(D) of the Public Health Service Act (42 U.S.C. 247d–7e(e)(1)(D)) is amended by striking on the date that is 17 years after the date of enactment of the Pandemic and All-Hazards Preparedness Act and inserting on October 1, 2028 . 108. Ensuring collaboration and coordination in medical countermeasure development Section 319L–1(b) of the Public Health Service Act (42 U.S.C. 274d–7f(b)) is amended by striking at the end of the 17-year period that begins on the date of enactment of this Act and inserting on October 1, 2028 . 109. Review of ASPR efforts to ensure supply chain resiliency and accountability (a) In general Not later than 18 months after the date of enactment of this Act, the Comptroller General of the United States shall complete a review of— (1) the Supply Chain Control Tower Program (in this section referred to as the SCCT Program ) under the Administration for Strategic Preparedness and Response of the Department of Health and Human Services