BI-336
Vaccines
Biology · Secondary 3 · Easy · Vaccines
A child receives a vaccine against tuberculosis (TB). Years later, the child is exposed to live TB bacteria. Which response shows that the vaccine has worked?
- The body slowly produces a small amount of non‑specific antibodies.
- The body quickly produces many specific antibodies against TB.
- The body stops all white blood cell activity to save energy.
- The body produces antibodies only after the disease becomes severe.
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