When my 2yr old had severe seizures after receiving her MMR vaccination, she was in ICU for a week. She underwent many tests- EEG, CT scan and MRI - ALL were normal. I went to see Dr. Privitera He did a hair sample, blood work, toxic metal screen and discovered she had a SEVERE deficiency of zinc and magnesium.Thusly, her immune system was weak and a unable to handle a vaccination. He prescribed vitamins and minerals,and diet change and she has been thriving ever since. She is 5 years old, and healthy as can be! God Bless you, Dr. Privitera, for helping us when other didn't know how!