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In 2004, a meta review financed by the European Union assessed the evidence given in 120 other studies and considered unintended effects of the MMR vaccine, concluding that although the vaccine is associated with positive and negative side effects, a connection between MMR and autism was "unlikely".
Following the belief that individual vaccines caused autism was the idea of vaccine overload, which claims that too many vaccines at once may overwhelm or weaken a child's immune system and lead to adverse effects. Vaccine overload became popular after the Vaccine Injury Compensation Program in the United States accepted the case of nine-year ...
Thiomersal and vaccines. Thiomersal (or thimerosal) is a mercury compound which is used as a preservative in some vaccines. Anti-vaccination activists promoting the incorrect claim that vaccination causes autism have asserted that the mercury in thiomersal is the cause. [1] There is no scientific evidence to support this claim. [2]
The Lancet MMR autism fraud centered on the publication in February 1998 of a fraudulent research paper titled "Ileal-lymphoid-nodular hyperplasia, non-specific colitis, and pervasive developmental disorder in children" in The Lancet. [1] The paper, authored by now discredited and deregistered Andrew Wakefield, and twelve coauthors, falsely ...
The CDC lists the following as possible side effects of the RSV vaccine: Pain, redness, and swelling where the shot is given. Fatigue. Fever. Headache. Nausea. Diarrhea. Muscle or joint pain ...
Epidemiology of autism. The epidemiology of autism is the study of the incidence and distribution of autism spectrum disorders (ASD). A 2022 systematic review of global prevalence of autism spectrum disorders found a median prevalence of 1% in children in studies published from 2012 to 2021, with a trend of increasing prevalence over time.
Vaccine misinformation. Misinformation related to immunization and the use of vaccines circulates in mass media and social media [1] [2] [3] in spite of the fact that there is no serious hesitancy or debate within mainstream medical and scientific circles about the benefits of vaccination. [4] Unsubstantiated safety concerns related to vaccines ...
A wide variety of postnatal contributors to autism have been proposed, including gastrointestinal or immune system abnormalities, allergies, and exposure of children to drugs, infection, certain foods, or heavy metals. The evidence for these risk factors is anecdotal and has not been confirmed by reliable studies.