Biology 1001A Lecture Notes - Phylogenetic Tree, Dna Replication, Genome Size
30 Nov 2013
School
Department
Course
Professor
Document Summary
Lecture 2- hiv independent study outcome: the general mechanisms by which vaccines protect against diseases. Vaccines create a cache of weapons for the immune system which u can deploy when needed. When pre-immunized you have forces in your body pre-trained to eliminate your enemies (pathogens) Antibodies are what makes vaccines work: why developing a vaccine against hiv is relatively challenging, compared to other diseases. Mutates extremely fast, has decoys to evade immune system, it attacks antibodies, and it can hide very well within immune system. Hiv is highly variable, there are multiple variations: why people are encouraged to get a flu vaccine each year (as opposed to one time only). Multiple strains develop each year and thus antibodies from the previous flu shot are unable to identify these new strains. The flu can also pass on to animals which can then recombine these diseases to re-affect humans.
