According to current ACIP recommendations, which pneumococcal vaccination strategy is appropriate for a 65-year-old adult who has never received any pneumococcal vaccine?
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A
PPSV23 alone as a single dose
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B
PCV13 followed by PPSV23 one year later
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C
PCV20 alone OR PCV15 followed by PPSV23 at least one year later
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D
PCV15 alone as a single dose