The U.S. Department of Health and Human Services (HHS) has announced plans to wind down its mRNA vaccine development programs, including those funded by the Biomedical Advanced Research and Development Authority (BARDA). This decision comes alongside a move by the Trump administration to cease funding for new mRNA vaccines, raising concerns over the future of these vaccine technologies. RFK Jr., recently appointed as health secretary, has also pulled $500 million in funding for various vaccine development projects, citing their ineffectiveness and potential risks. He has expressed a commitment to prioritizing transparency and avoiding conflicts of interest in vaccine-related committees.