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Aging itself is not a disease, but it is associated with many diseases. During the aging process, the human body suffers a decline in several functions. The representative function among them is the immune function. For this reason, humans easily succumb to the disease during the aging process, and have difficulty in preventing the disease through vaccines, and when the disease occurs, the aged human body cannot overcome it. Aging makes the conditions for humans so vulnerable to disease. The reason stems from changes in the human immune system. Knowing how the immune system changes during the course of aging is thus the same as understanding how humans are becoming more vulnerable to conditions that fight disease during the course of aging.

Advisor Professor : Nam, Chang-Hoon