There are indeed risks with drinking portable water - t. Allthough this depends heavily on which part of the world you live in. If you have portable wather in Europe it's most likely it's safe to drink in most places, while this isn't necessarily true for other places in the World.
It's a form of malnutrition where you taking in too many nutrients and exceeds the amount needed for development and metabolism
Wound must be covered to ensure that pathogens dont contaminate food and food surfaces
Wouldn't it go through the skin, or the epidermis, and then make its way to the bloodstream and then infect cells