Active and Passive Immunity

The video tutorial explains acquired immunity, which includes active and passive immunity. Active immunity involves the body's response to an antigen, either naturally or artificially, such as through vaccination. It is slow to develop but long-lasting. Passive immunity involves receiving antibodies from another source, either naturally, like from a mother to her infant, or artificially, such as through medical treatments. Passive immunity provides immediate but short-term protection.

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