Post-Polio Syndrome (PPS) is best described as?

• A. A temporary increase in activity after polio.
• B. A chronic illness that can develop in polio survivors, characterized by weakness, fatigue, and other symptoms.
• C. A vaccine-preventable condition caused by polio.
• D. An acute infectious disease that follows polio recovery.

Answer: (B)

Post-polio syndrome is a late, chronic condition that can develop years after the initial polio infection. It presents with new or progressively worsening muscle weakness, fatigue, and may include pain, muscle atrophy, and sometimes breathing or swallowing difficulties. This is not a temporary post-illness flare, nor is it caused by a new infection or a vaccine-related issue. It reflects a delayed, ongoing complication in polio survivors rather than an acute illness.