The vaccines on the CDC’s childhood vaccine schedule given to babies during the first six months of life include over 3,500 mcg of aluminum adjuvant, a known neurotoxic substance which can damage nerves and kills cells.  
The dangers of aluminum based adjuvants have been well documented. Animals injected with aluminum adjuvant, for example, suffer various neurological deficits. In 2017, ICAN even published a white paper summarizing the science which explains how aluminum adjuvant can cause neurological impairment when administered to babies.
Given the foregoing concern, a FOIA request was submitted to the National Institute of Health (NIH) requesting “copies of any human or animal studies involving the subcutaneous or intramuscular injection of aluminum adjuvant relied upon by the NIH to establish the safety of injecting infants and children with aluminum hydroxide, aluminum phosphate or amorphous aluminum hydroxyphosphate sulfate.”
The NIH engaged in an extensive search that included having the following institutes within the NIH search for responsive studies: the NIH Office of Intramural Research (OIR), the National Institute of Allergies and Infectious Diseases (NIAID), and the Eunice Kennedy Shriver National Institute of Child Health and Human (NICHD).
But despite their extensive search, the NIH finally conceded that “no records responsive to your request were located.”  This admission is incredible. Despite injecting babies with thousands of micrograms of this toxic substance, known to cause cellular and neuronal death, the scientific medical brain trust of this country, the NIH, does not have a single study involving the injection of this substance that would support its safety. This may be because all of the studiesinvolving injection of aluminum adjuvant reflect its dangers.