US HB3674

Authorizes U.S. participation in and contributions to the Davos Alzheimer's Collaborative (DAC), a public-private venture launched in 2021 to advance international prevention, diagnosis, and treatment of Alzheimer's disease and dementia

Caps U.S. government contributions at 33% of total DAC funding during fiscal years 2026-2030, requiring matching funds from other sources before U.S. funds can be obligated

Allows the President to designate a federal employee to serve on DAC's Advisory Council and Board of Directors, with required coordination between USAID, State Department, and HHS

Requires annual reports to Congress detailing planned U.S. financial contributions, governance participation, summary of all contributions to DAC, and how participation supports U.S. Alzheimer's and global health strategies

Cites global impact statistics: nearly 60 million people currently affected worldwide (projected to reach 150 million by 2050), annual global economic cost exceeding $1.3 trillion, and U.S. cases expected to reach 12.7 million by 2050 costing nearly $1 trillion annually