A viral infection affecting the spinal cord and brain that may cause muscle weakness or paralysis.
For the active febrile phase, medical records documenting the diagnosis of active anterior poliomyelitis, including records showing fever and the timing of the illness, are the key evidence. For the residual phase, the evidence needs to reflect what lasting impairment remains after the active disease has resolved. Medical records showing muscle weakness, atrophy, or paralysis in specific limbs or muscle groups are directly relevant. Neurological examination findings that describe the degree of motor or sensory loss help establish how severely function is affected. Physical therapy or rehabilitation records can show functional limitations over time. Statements from you describing how residual weakness or other symptoms affect daily activities — such as walking, lifting, or self-care — and how they affect your ability to work can help show the practical impact of those residuals. The goal is to document both what physical findings are present and how they limit your functioning.
Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.