: It explored how early tribal religions and practices were influenced by the disease.

If you are looking for physical papers or documents to "develop" or collect for quests, here are the most relevant items:

In Dead Island: Riptide , the phrase "develop a paper" most likely refers to the written by the researchers Dr. Kessler and Dr. Villa, which is a key piece of lore found within the game's collectible Secret Files . The Kessler-Villa Paper

: You interact with Dr. Kessler in the BioSphere (Chapter 4), where he provides background on the virus mutations based on his years of research with the WHO.

: A specific quest item that players often find difficult to locate, essential for progressing certain medical-related side objectives.

: The research included the effects of chemical weapons used during the 1940s Japanese invasion, which had a mutagenic effect on the local pathogen. Key Locations & Objectives Related to "Papers"