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

: 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.

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

: In the quest "The Ritual," you must find Marcus' notes hidden behind a picture in Mataka Village to advance the story.

This academic paper is the primary reason the military and specialized agencies became interested in the Palanai islands. According to , found in the military base's communication building, the paper detailed:

: Located in the Henderson Military Base west of the cinema. It is one of the 9 Secret Files required for "The Collector" or "The Hoarder" achievements.

: The scientists studied the effects of this disease on the indigenous population of Palanai.