Biology 1001A Lecture Notes - Spindle Apparatus, Dna Replication, Amino Acid
20 Nov 2013
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Document Summary
Is outcomes general mechanisms by which vaccines protect against diseases. Vaccine trains body in advance how to recognize and neutralize an invader. Vaccines make catch or ammo to defeat infection once contracted. Creates small immunity to infection why developing a vaccine against hiv is relatively challenging, compared to other diseases. Hiv mutates furiously and attacks cells that destroy it why people are encouraged to get a flu vaccine each year (as opposed to one time only). Flu virus constantly mutating and changing shape. Flu vaccine changes with the strain of mutant flu that is most prevalent at the time. Lecture outcomes general global distribution of hiv infections. First world has low rates of infection. 33. 3 million estimated to be living with hiv general temporal trends in hiv infection rates. # of people living with hiv plateauing after an increase. Death rate decreasing due to medications factors that explain why no cure or universal vaccine has been developed for hiv/aids.
