My daughter was developing normally until her three year shots. Sudden and dramatic personality and intellect change over night. From a normal child to one that has struggled with empathy attention caring and normality ever since. I've raised six kids I know what normal development is. It was like she'd been abused and believe me I investigated that possibility. I don't know what it was but over stopped vaxxing my kids. They have an immune system and the need to earn their right to live on earth by combating microorganisms every day