Paedbasic
The CDC recommends an adult tetanus and diphtheria (Td or Tdap) booster every 10 years primarily because vaccine-induced immunity wanes over time.
Answer
True
Explanation
The prevention slide states that the CDC recommends a booster every 10 years due to waning immunity. This is presented alongside the listed childhood primary and booster schedule. **Key takeaway:** The material links periodic boosting to declining immunity over time.\n\n**Glossary:** **Waning immunity**: decreasing protection as time passes after immunization.
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