Another large study confirms no link between MMR vaccine and autism
The MMR vaccine – against measles, mumps and rubella – in no way increases the risk of autism, according to a study by Danish researchers. The study was conducted on a group of more than 650,000. Children born between 1999 and 2010.
This is one of the largest studies of its kind. In it, the researchers analyzed medical data from 657,461 children born in Denmark between 1999 and 2010. The study was conducted by Statens Serum Institut (SSI) and once again proves that the MMR vaccine does not increase the risk of developing autism in children.
For more than 20 years, some members of the public have been concerned about MMR vaccines, which re alleged to cause autism in children. This is the result of the work of British physician Andrew Wakefield, kt ry in 1998, he and 12 other scientists published in a prestigious journal „The Lancet” The results of the study, which re indicated a link between MMR vaccines and the occurrence of autism in children receiving them.
P Subsequent investigations showed that the test results had been falsified, and Wakefield himself received nearly 450,000. pound in from a lawyer in representing the parent in, which The group of drugmakers who demanded high compensation from the corporation’s in pharmaceuticals for alleged vaccine damage. The publication from „The Lancet” was withdrawn, Wakefield was banned from the profession, but confidence in vaccines could no longer be restored. The result of all the fuss is that fewer and fewer parents want to vaccinate their children, and there are more and more cases in Europe and elsewhere of mothers experiencing pregnancy-related complications in dangerous diseases b infectious diseases – mainly nie measles.
Danish researchers at SSI have refuted Wakefield’s theory for the second time. In 2002, SSI and Aarhus University conducted a large study of 537,303 children. This study found no link between the MMR vaccine and autism. Now researchers at SSI have conducted a brand new and even larger study, which re also shows that MMR vaccines are not linked to autism. The findings were published in the journal „Annals of Internal Medicine”.
A study conducted by Danish included a total of 657,461 children born between 1999 and 2010. They were observed from birth until August 2013. Researchers linked the data of children m.in. with the Danish Vaccination Register (DDV) ) and with reports of autism diagnoses. Among d og larity of the approximately 6,500 children who have been ho have been diagnosed with autism spectrum disorder (ASD).
– Autism occurred nie often among d of vaccinated children, as well as among the d 31,619 children who re were not vaccinated. Therefore, we can conclude that the MMR vaccine does not increase the risk of developing autism – said Anders Hviid of SSI, which ry together with Professor Mads Melbye initiated the study. What’s more, studies have shown no association between the MMR vaccine and children at risk, i.e., those with siblings whose mothers smoked ho were diagnosed with ASD.
Researchers in the study analyzed the Also, whether other factors may play a role in the way some re children react specifically to the MMR vaccine.
– Details lnie observed children with autistic siblings, as these children are known to have an increased risk of developing autism. We also focused on other risk parameters: children with older parents, children who have been of mothers experiencing pregnancy-related complications, children who hose mothers smoked cigarettes, children with low birth weight, as well as temporal links between MMR vaccine administration and the development of autism. In none of the cases e did not observe a higher risk of developing autism among the d children vaccinated with MMR in por n comparison with unvaccinated children,” admitted Hviid.
Age at which rime a child receives the MMR vaccine, coincides with age, in kt ry many children with autism begin to show the first symptoms of the disease. It is natural that some ers parents of autistic children link the two events, even though they have no connection – write the scientists on the SSI website.
According to SSI, the results of the first study are further confirmed in the conclusion of the new study that there is no link between the MMR vaccine and autism. At the same time, the conclusion is essential in the current debate about the growing number of cases of in measles zar both globally and in Europe.
The World Health Organization (WHO) at the beginning of the year published a list of the biggest global health threats in 2019. Among d many dangerous diseases b, like the ebola virus or the dengue virus, found also the anti-vaccine movement.
Scientists still don’t know the cause of ASD onset. About 30-35 percent of. cases is associated with rare genetic variants. In addition, environmental factors and The different mutations also play a role. People with ASD have problems interacting with other people. Often there are excessive repetitive behaviors, such as swaying or obsessively arranging toys in a straight line. But the array of symptom is huge. These can include mild behavioral problems or debilitating compulsive behavior, anxiety, cognitive disorders and more. Because the symptoms of ASD are so zr sion, and the causes are not yet fully understood, diagnosis and treatment are very difficult.