NATS 1670 Study Guide - Edward Jenner, Antigenicity, Latv
17 Nov 2014
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The goal is to activate immunity before person is infected with a pathogen. Most of the damage to cells during infections occurs very early, often before the clinical symptoms of disease appear. This makes drug treatment of infection irrelevant in many cases. Prevention of infection is better and cheaper (not likely to have the flu if person gets the vaccine). Vaccine -> acquired immunity -> reinfection -> no disease. Vaccination can be the first time the 10 ag is activated. Develop memory cells in the third line of defense. Vaccine is the primary immune response gives significant amount of antibodies. Variolation gives immunity however, it is not so safe. 95% of cases, you have immunity without the disease. People in the rural regions (especially people with cows) usually show markings on their hands. Something they have on their hands must be related to the protection they have.
