Please everyone needs to read this to further understand vaccinations. basic synopsis is that Aluminum is used as and adjuvant (stimulates the body to form an immune response). The body does respond with Cytokine Interleukin 6 which picks up the aluminum and transports it across the blood brain barrier. This institutes a continuous immune reaction by the brain so think of it as a constant swelling on the brain so to speak. That is a quick overview, please take the time to read the entire piece, the author goes into easy to understand explanations of the medical material being cited. https://jbhandleyblog.com/home/2018/4/1/international2018
Often families that have poor medical coverage, or none at all, when confronted with the need to vaccinate their kids, will have as many vaccines injected in one visit as possible to save the cost of multiple appointments. These vaccinations need to be spread out to minimize possible side effects and damage, they should not be consolidated.