The mercury-based ingredient has prompted concerns from some organizations, although the CDC has said there is no evidence it causes harm.

The CDC says there is no evidence of harm from mercury-based thimerosal.

A nonprofit anti-vaccine group founded by Robert F. Kennedy Jr. is suing him, in his capacity as secretary of the US Department of Health and Human Services, for failing to establish a task force to promote the development of safer childhood vaccines.

The Wisconsin DHS added a requirement for the 2024-25 school year for the Meningococcal conjugate vaccine (MenACWY) by seventh grade, and a booster by 12th grade. Meningococcal disease is a rare, but serious disease that can be fatal in 10% to 15% of people who get it.

During a House Energy and Commerce Health Subcommittee hearing, Health Secretary Robert F. Kennedy Jr. said he’d like all Americans to use wearable health products, such as Fitbits, Apple Watches, Oura Rings, WHOOP and glucose monitors, to “control” their health and “take responsibility” for it.

HHS Secretary Robert F. Kennedy Jr. formally accepted recommendations that would require all vaccine manufacturers to discontinue using the preservative thimerosal in flu vaccines.

Federal guidelines no longer recommend flu vaccines containing a preservative, used in a small percentage of vaccines, that has been falsely linked to autism.

The health secretary has made many inaccurate statements about vaccines. But the science is clear that vaccines have dramatically reduced childhood illness, disability and death.