What was the purpose of the Vaccine Safety Datalink (VSD) database study?
The purpose of this Vaccine Safety Datalink database study was to determine whether there were associations between vaccines that used thimerosal as a preservative (i.e., an ingredient to prevent the growth of harmful bacteria and fungi) and a wide range of neurodevelopmental problems, including autism, attention deficit disorder, language delays, sleep disorders, emotional disorders, and tics. Researchers from CDC and participating Health Maintenance Organizations (HMOs) analyzed the computerized vaccination and medical records of over 140,000 children from birth up to 9 years of age. Top • There have been reports that one of the CDC scientists who worked on this study now works for a vaccine manufacturer and that this was never mentioned in the publication of the study. Is this true? Yes. From the time the study started to the time it was published took about 4 years and during that time one of four CDC scientists involved in the study left CDC to work for a pharmaceutical company ca