Which vaccine requires a booster for adults at high risk of exposure to polio?

The vaccine that requires a booster for adults at high risk of exposure to polio is Ipol. This inactivated poliovirus vaccine is essential for individuals who may be at increased risk due to factors such as travel to areas where polio is endemic, working in laboratories handling the virus, or having a job that increases their exposure to polio. In these high-risk groups, a booster shot is recommended to maintain immunity and ensure continued protection against the disease.

In contrast, the other vaccines listed serve different purposes. Menactra is a meningococcal vaccine, Pneumovax 23 is used for pneumococcal disease prevention, and Prevnar 13 is another pneumococcal vaccine aimed at providing immunity against different strains. These vaccines do not pertain to the prevention of polio or require a booster specifically related to polio exposure. Understanding the specific indications for vaccines is crucial for effective immunization practices.