Mibo 3500e Exam 3 With 100% Correct Answers

HIV Illness {Ans: -Virus spreads via body fluids -Flu-like symptoms -Swollen lymph nodes -Sores that won't heal (signs of uncontrolled infections, infections wouldn't normally have, etc.) -Fatigue -Rash -Night sweats -Complications: virus can persist and lead to Acquired Immune Deficiency Syndrome (AIDS) -Some patients rapidly develop Acquired Immune Deficiency Syndrome (AIDS): within 2-3 years -Some patients remain healthy for at least 10-20 years post-infection -T cell count reduces and opportunistic infections begin (ex: Candida yeast a minor infection in healthy, but severe in these individuals): AIDS patients don't usually become seriously ill directly from virus itself (because it lowers immunity towards other microorganisms) -Chronically infected patients have diverse populations d (because mutates so frequently) in their blood (quasispecies); diverse populations hard to target with antiviral drugs -Certain variants "seed" (make way to genital tract and replicate in tissue) tissues of the genital tract -The same variants are seen in fluid from genital tract -Fast replicating variants are transmitted to others from genital fluid -Fast replicating variants seed the blood of newly infected (one variant "takes over" and population is briefly uniform: at this point don't know infected) -Population becomes diverse in new patient; diverse populations are hard to target