A 6-year-old child arrives as a new patient to your clinic. He is a healthy, well-developed toddler. His immunization card reveals that he received an immunization at birth and some when he was 2-months old, but none since. He obviously requires several im-munizations. Which of the following statements is correct?
A. He should receive the live oral polio virus vaccine rather than the inactivated (injectable) poliovirus vaccine.
B. The pertussis vaccine is not contraindicated at his age and should not be replaced with the tetanus-diphtheria vaccine.
C. He is too old to receive the Haemophilus influenzae type B vaccine.
D. His vaccinations at birth and 2 months of age should be re¬peated, since too much time has elapsed for them to be effective.
E. He is too young for the varicella vaccine