evidence: If a vaccine was improperly manufactured, stored, or distributed, leading to contamination, and that contamination caused encephalopathy, it could be considered negligence on the part of the manufacturer or distributor. [...] If you believe that you or a loved one has experienced encephalopathy as a result of a vaccine injury, it’s recommended to consult with medical professionals and, if appropriate, our encephalopathy attorney in Philadelphia. We can help assess the situation, explore potential causes, and provide guidance on the available options. [...] Most vaccines are safe and do not cause encephalopathy. However, there have been historical concerns and reports of encephalopathy associated with a few specific vaccines. Here are some vaccines that have been historically linked, albeit rarely, to encephalopathy: