Which of the following patients would be a candidate now for revaccination with PPSV23?

The correct choice of a 66-year-old woman who received her first dose of PPSV23 at 60 years of age aligns with the recommended guidelines for revaccination. According to the Centers for Disease Control and Prevention (CDC) recommendations, individuals aged 65 and older should receive a revaccination with PPSV23 if they had their first dose before the age of 65. This revaccination typically occurs five or more years after the first dose.

In this case, the woman was vaccinated at 60 years old and is now 66 years old, making her eligible for a revaccination as she falls within the age group and the required timeframe for receiving the second dose.

When considering the other options, the 68-year-old man who received the vaccine at 64 years of age is too close to the age cutoff for receiving a second dose, as he received it after the age of 65, which does not require a routine revaccination. Similarly, the 71-year-old man who received his first dose at age 65 also does not meet the criteria for revaccination since the recommendation typically states that those vaccinated after the age of 65 do not need to receive the vaccine again. Lastly, the 45