Attenuated vaccines are weakened forms of active viruses or live bacteria that cause mild infections, stimulate immune responses, and provide long-lasting immunity.
Attenuated vaccines are vaccines that can be made from active viruses or live bacteria but are weakened to cause a mild and temporary infection without severe symptoms. These vaccines activate both cellular and humoral immunity and can develop long-lasting immunity. Examples include the MMR vaccine and the oral polio vaccine.
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