My sister-in-law started having severe “acute schizophrenia” symptoms suddenly in her early 50’s. She has unsuccessfully been receiving treated with antipsychotics and antidepressants. Now she is almost catatonic and her speech is unintelligible. Can encephalitis progress slowly after the initial symptoms occur? Also, does it continue to progress to the point of death or near death? My sister-in-law isn’t getting any better. I am wondering if she might have some form of encephalitis. My brother is doing everything for her that her doctors tell him to, but their lives are almost unbearable. The doctors are really doing nothing but treating her with stronger and stronger antipsychotic medications. It’s an impossible situation and they have been dealing with this for about 5 years.