Large Study Provides Even More Evidence That Vaccines Have Nothing To Do With Autism

[Sanguine]

Just in case you needed further convincing, a new study that examined medical records from more than 81,000 American children has found absolutely no increased prevalence of autism spectrum disorder (ASD) in children whose mothers received vaccines for potentially deadly infections while pregnant.

The analysis, published today in the journal Pediatrics, was performed by Kaiser Permanente researchers using data from children born at southern California Kaiser hospitals between January 2011 and December 2014. The vaccine of interest in this case – the infamous link to the measles, mumps, and rubella (MMR) vaccine has already been thoroughly discredited – was the Tdap, a combined immunization that protects both mother and baby against the three pathogenic bacteria species that cause tetanus, diphtheria, and pertussis (also known as whooping cough).

Among the 81,993 naturally conceived children included in the study, 1,341 were clinically diagnosed with ASD between their first birthday and June 2017. The incidence of the disorder in the vaccinated group was 1.5 percent, compared with 1.8 percent for the unvaccinated group. After adjusting for numerous potential confounders, including child’s birth year, whether the baby was born prematurely, ethnicity, maternal age, maternal education, geographic location, start of prenatal care, flu vaccination during pregnancy, and whether the child was the first born (past work has indicated that birth order affects development of ASD), the authors concluded that there is no risk of ASD from Tdap....

http://www.iflscience.com/health-and-medicine/large-study-provides-even-more-evidence-that-vaccines-have-nothing-to-do-with-autism/