Studies have shown that adjuvants, from a single vaccine, can cause immune overactivation for as long as two years. This means that the brain microglia remain active as well, continuously pouring out destructive chemicals. In fact, one study found that a single injection of an immune activating substance could cause brain immune overactivation for over a year. This is very destructive.
People ask what is the mechanism involved to suspect that vaccines cause harm/death?
The hypothesis has been; the adverse events/deaths associated with/caused by vaccines are the result of over reaction of the immune system; "cytokine storm."
A cytokine storm is the systemic expression of a healthy and vigorous immune system resulting in the release of more than 150 inflammatory mediators (cytokines, oxygen free radicals, and coagulation factors). Both pro-inflammatory cytokines (such as Tumor Necrosis Factor-alpha, InterLeukin-1, and InterLeukin-6) and anti-inflammatory cytokines (such as interleukin 10, and interleukin 1 receptor antagonist) are elevated in the serum, and the fierce and often lethal interplay of these cytokines is referred to as a "Cytokine Storm." The primary contributors to the cytokine storm are TNF-a (Tumor Necrosis Factor-alpha) and IL-6 (Interleukin-6). The cytokine storm is an inappropriate (exaggerated) immune response that is caused by rapidly proliferating and highly activated T-cells or natural killer (NK) cells. These cells are themselves activated by macrophages. The cytokine storm must be treated and suppressed or lethality can result.
http://www.invivogen.com/review-vaccine-adjuvants

When your child presents with signs/symptoms of vaccine reaction, take them to the ER immediately and ask the physician to order the following blood work to evaluate interleukins, specifically. Pro inflammatory cytokines.

Get a copy of the lab report and save for your records. These documents serve as proof that the reaction is due to the vaccine.