HLTH 1001 Lecture Notes - Lecture 7: Body Fluid, Gastroenteritis, White Blood Cell
27 Jan 2017
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Tips for midterm exam: 50 m/c questions, 65 minutes to complete; keep track of trends talked about in class (example question: what is an example of an acute disease/illness?) Population health pyramid: do not need to know for the first midterm. Infectious diseases are caused by pathogenic microorganisms (bacteria, parasites, viruses or fungi); can spread, directly or indirectly, from one person to another. Half of all deaths caused by infectious diseases annually can be attributed to three diseases: tuberculosis (bacterial), malaria (parasitic) and aids (viral) Bacteria have the a(cid:271)ility to reprodu(cid:272)e o(cid:374) their o(cid:449)(cid:374), (cid:449)hereas (cid:448)irus" do not. Hiv atta(cid:272)ks the (cid:271)ody"s i(cid:373)(cid:373)u(cid:374)e syste(cid:373), spe(cid:272)ifi(cid:272)ally the cd4 (cid:272)ells (t-cells), which help the body fight off infections. If left untreated, hiv reduces the number of cd4 cells in the body which makes the person much more likely to get infections or infection-related cancers.
