U.S. Senator Bill Cassidy, M.D., has recently addressed topics related to prenatal care, vaccine safety, and public health transparency in a series of posts on his official Twitter account.
On August 31, 2025, Senator Cassidy responded to claims about prenatal care and infection risk among newborns. He stated, “Empirically, this is not true. Not all mothers have prenatal care. Some get infected between testing in the first trimester and delivery. In some cases, the test is overlooked. If a child is infected at birth, they have a 95% chance of becoming chronically infected UNLESS, they”.
In another post made moments later on August 31, 2025, Cassidy emphasized the safety of vaccines and their role in preventing disease: “The vaccine is safe as proven by study after study. MAHA starts with preventing vaccine preventable diseases. @RandPaul”.
Continuing the discussion on public health policy and data transparency on September 1, 2025, Senator Cassidy expressed support for former President Trump’s stance: “I completely agree with President Trump’s call for radical transparency. We need to know what the data says and where it is coming from, so the CDC and HHS can make the best decisions. People who criticize President Trump’s Operation Warp Speed typically misrepresent and”.
Senator Cassidy is a physician and serves as one of Louisiana’s representatives in the U.S. Senate.

