What is the difference between active immunity and passive immunity?
Active immunity is produced by one's own body after infection or vaccination and is long-lasting; passive immunity is borrowed ready-made antibodies (colostrum, antiserum) that act at once but fade quickly.
Active immunity is produced by one's own body after infection or vaccination and is long-lasting; passive immunity is borrowed ready-made antibodies (colostrum, antiserum) that act at once but fade quickly. A reliable way to keep them apart is to focus on what each one is defined by, not just the similar-sounding words.
Key point
active immunity vs passive immunity
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