HLTH101 Lecture Notes - Lecture 5: Trichinosis, Peptidoglycan, Gram-Positive Bacteria

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We"ve now seen that there have been patterns throughout history in the types of diseases from which humans suffer. Briefly, our ancient ancestors living from 40,000 to 10,000 years ago likely experienced few of the infectious diseases known to our more recent ancestors. For most of the past 10,000 years, those who died prematurely often did so from an assortment of infectious diseases that, in most cases, still exist today but are rarely the cause of death in our present society. Rather, over the past 160 years or so, as we"ve become less susceptible to those diseases, we"ve become increasingly exposed to non-infectious diseases that usually become symptomatic relatively late in life. We are now at a point in this course where we can begin to look more closely at the diseases that were prevalent in the past as well as those that are prevalent today.

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