What if Autism is contagious, but not how we think of "contagious"? If we define "contagion" simply as something that spreads, propagates, or infiltrates, then it's logical that if Autism is caused by unclean spirits like the Bible says, then that uncleanness could spread just like many things spread that the Old Testament called unclean . "If a person touches any unclean thing... he also shall be unclean ." (Leviticus 5:2) There are a few real life examples that intrigue me