SIDS attributed to vaccines. “It is more likely than not that the vaccines played a substantial causal role in the death of J.B. without the effect of which he would not have died. ” This important case decision validates that vaccines can contribute to and cause SIDS deaths in infants. There are no words to describe the importance of this decision. The Courts, FDA and independent science have all confirmed that vaccines contribute to the deaths of infants. And yet, public campaigns blame sleeping positions and co-sleeping as the primary culprits in the deaths of our most vulnerable.