| IAV | Influenza A virus |
| IAE | influenza-associated encephalopathy |
| FS | simple febrile seizure |
| IA-ANE | influenza-associated acute necrotizing encephalopathy |
| NSAIDs | Nonsteroidal Anti-inflammatory Drugs |
| GCS | Glasgow Coma Scale |
| WBC | white blood cells |
| NEU | neutrophils |
| LYM | lymphocytes |
| MONO | monocytes |
| SD | standard deviation |
| VIF | variance inflation factor |
| BBB | blood–brain barrier |
| IVIG | intravenous immunoglobulin |