<unk>  (or thimerosal) is a mercury compound which is used as a preservative in some<unk> . Anti-vaccination activists promoting the incorrect claim that vaccination causes autism have asserted that the mercury in<unk>  is the cause. There is no scientific evidence to support this claim. The idea that<unk>  in<unk>  might have detrimental effects originated with anti-vaccination activists and was sustained by them and especially through the action of plaintiffs' lawyers. The potential impact of<unk>  on autism has been investigated extensively. Multiple lines of scientific evidence have shown that<unk>  does not cause autism. For example, the clinical symptoms of mercury poisoning differ significantly from those of autism. In addition, multiple population studies have found no association between<unk>  and autism, and rates of autism have continued to increase despite removal of<unk>  from<unk> . Thus, major scientific and medical bodies such as the Institute of Medicine and World Health Organization (WHO) as well as governmental agencies such as the Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) reject any role for<unk>  in autism or other neurodevelopmental disorders. In spite of the consensus of the scientific community, some parents and advocacy groups continue to contend that<unk>  is linked to autism and the claim is still stated as if it were fact in anti-vaccination propaganda, notably that of Robert F. Kennedy Jr., through his group Children's Health Defense.<unk>  is no longer used in most children's<unk>  in the United States, with the exception of some types of flu shots. While exposure to mercury may result in damage to brain, kidneys, and developing fetus, the scientific consensus is that<unk>  has no such effects. This controversy has caused harm due to parents attempting to treat their autistic children with unproven and possibly dangerous treatments, discouraging parents from vaccinating their children due to fears about<unk>  toxicity and diverting resources away from research into more promising areas for the cause of autism. Thousands of lawsuits have been filed in the U.S. to seek damages from alleged toxicity from<unk> , including those purportedly caused by<unk> . US courts have ruled against multiple representative test cases involving<unk> . A 2011 journal article described the<unk> autism connection as "perhaps, the most damaging medical hoax of the last 100 years".
Thiomersal and vaccines
QazCovid-in
Brexucabtagene autoleucel
Belantamab mafodotin
Cephem
Flurothyl
Vaccitech
Ciltacabtagene autoleucel