Given the question: The Cobra Event is a 1998 thriller novel by Richard Preston describing an attempted bioterrorism attack on the United States. The perpetrator of the attack has genetically engineered a virus called Cobra that fuses the incurable and highly contagious common cold with one of the world's most virulent diseases smallpox. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
The answer is:
Written Work