A study published on March 5, 2019 in the medical journal Annals of Internal Medicine entitled “Measles, Mumps, Rubella Vaccination and Autism: A Nationwide Cohort Study” was designed to evaluate whether the MMR (measles, mumps, rubella) vaccine increases the risk for autism in children, subgroups of children, or time periods after vaccination, in a nationwide cohort study involving children in Denmark.
The study involved 657,461 children born in Denmark from 1999 through December 31, 2010, with follow-up from 1 year of age and through August 31, 2013, using Danish population registries to link information on MMR vaccination, autism diagnoses, other childhood vaccines, sibling history of autism, and autism risk factors to children in the cohort.
The reported results of the study were: “During 5,025,754 person-years of follow-up, 6,517 children were diagnosed with autism (incidence rate, 129.7 per 100,000 person-years). Comparing MMR-vaccinated with MMR-unvaccinated children yielded a fully adjusted autism hazard ratio of 0.93 (95% CI, 0.85 to 1.02). Similarly, no increased risk for autism after MMR vaccination was consistently observed in subgroups of children defined according to sibling history of autism, autism risk factors (based on a disease risk score) or other childhood vaccinations, or during specified time periods after vaccination.”
The study concluded: “The study strongly supports that MMR vaccination does not increase the risk for autism, does not trigger autism in susceptible children, and is not associated with clustering of autism cases after vaccination. It adds to previous studies through significant additional statistical power and by addressing hypotheses of susceptible subgroups and clustering of cases.”
The CDC states on its website: “MMR vaccine has been linked with a very small risk of febrile seizures (seizures or jerking caused by fever). Febrile seizures following MMR are rare and are not associated with any long-term effects. Because the risk of febrile seizures increases as infants get older, it is recommended that they get vaccinated as soon as recommended.
Some people may experience swelling in the cheeks or neck. MMR vaccine rarely causes a temporary low platelet count, which can cause a bleeding disorder that usually goes away without treatment and is not life threatening.
Extremely rarely, a person may have a serious allergic reaction to MMR vaccine. Anyone who has ever had a life-threatening allergic reaction to the antibiotic neomycin, or any other component of MMR vaccine, should not get the vaccine …
Some parents might worry that the vaccine causes autism. Signs of autism typically appear around the same time that children are recommended to receive the MMR vaccine. Vaccine safety experts, including experts at CDC and the American Academy of Pediatrics (AAP), agree that MMR vaccine is not responsible for increases in the number of children with autism.”
If you or a loved one may have been injured as a result of a vaccine in the United States, you should promptly find a vaccine injury lawyer in your state who may investigate your vaccine injury claim for you and represent you or your loved one in a vaccine injury case, if appropriate.
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