Is fatty infiltration of the pancreas actually a consequence of a chronic viral infection, as is the case for fatty liver disease?

This is truly the case, that fatty infiltration is a sign of a chronic viral insult being borne by the body, and is a natural response to fight back. The creation of fat stores is needed many times to sequester harmful substances taken up by the body, so this is a kind of generalized safety measure that is triggered oftentimes, when illness commences. While not the primary cause, it is a hallmark of trouble underway needing healing attention.