Autism is a disorder of neural development that causes kids to experience the world differently from the way most other kids do. Kids who have autism usually keep to themselves because it can be hard for them to interact with other people or express themselves by using proper words. Also they have trouble linking words to their meanings. Imagine trying to understand what your mom is saying if you don't know what her words really mean. It is more frustrating then if a kid cannot come up with the right words to express his/her own thoughts.
Autism is treatable. Although some parents just refuse to vaccinate their children at all which is an unwise and dangerous choice. Possibility of death and harm from chickenpox, measles, meningitis and other diseases are still a threat to children who are not protected. So, it is most important that parents and pediatricians continue to put trust on immunizations to protect all children from preventable and potentially deadly illnesses.