What happens when a 'killed' vaccine is injected into the body?
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Correct answer: The immune system detects surface antigens and produces antibodies
Even though the pathogen is killed and cannot replicate, its structural proteins (antigens) remain intact. The immune system recognizes these foreign proteins and mounts a primary immune response, creating memory for future protection.
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More Vaccines and their role questions
- Which of the following describes the principle of 'memory' in the context of vaccination?
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