As a subject matter expert in the field of fictional diseases, particularly those found in comic books and popular media, I can provide you with an accurate answer to your question.

Harry Osborn, a character from the Spider-Man comics, suffers from a condition known as the "Osborn Condition" or "Gerry's Disease," which is a fictional illness created for the Marvel Comics universe. This condition is characterized by a rapid decline in physical and mental health, often leading to symptoms such as hallucinations, paranoia, and a weakened immune system. It is not a real-world medical condition but rather a plot device used in the comics to add depth to the character's story.

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Little is known of Norman Osborn, other than that he had a debilitating disease called 'Retroviral Hypodisplasia' which killed him. Dr. Curt Connors' and Dr. Rajit Ratha's experiments with lizard DNA were an attempt to cure him, until Connors used the serum on himself, transforming into the monstrous Lizard.read more >>