Why is the downstream or individualistic view of disease insufficient

Why is the downstream or individualistic view of disease insufficient

“In at least 400 words, explain the social, historical, and political factors that led to the epidemic of Type 2 diabetes among Native Americans living in reservations. Why is the “downstream” or “individualistic” view of disease insufficient? Define your terms and use textual evidence; it can be from assigned course readings and/or supplemental.\”