According to schizophrenia.com, approximately 1/3 of the homeless people(around 600,000,) are schizophrenic.
Around 51 million people in the world could be schizophrenic at any given moment.
If someone is having hallucinations or delusions, they could possibly have schizophrenia as these are possible symptoms.
Schizophrenia is treated by medication, therapy, and psychosocial treatment.
People suffering from Schizophrenia can get treatment by visiting or talking to a doctor or to a therapist or psychologist.
There are many websites, books, and articles on Schizophrenia. You can find these on the internet and in the library.
Sources: Healthline.com, Schizophrenia.com, and knowledge I had already acquired