| ADEM | Acute Disseminated Encephalomyelitis |
| AESI | Adverse Event of Special Interest |
| AMI | Acute Myocardial Infarction |
| CI | Confidence Interval |
| DVT | Deep Vein Thrombosis |
| GBS | Guillain Barré Syndrome |
| ICD | International Classification of Diseases |
| IR | Incidence Rates |
| IRR | Incident Rate Ratio |
| LRTI | Lower Respiratory Tract Infection |
| MHRA | Medicines and Healthcare products Regulatory Agency |
| NCDS | National Clinical Data Store |
| NRS | National Records of Scotland |
| OE | Observed Versus Expected |
| PROMISE | Preparing for RSV Immunisation and Surveillance in Europe |
| RSV | Respiratory Syncytial Virus |
| RSVpreF | Respiratory Syncytial Virus Bivalent Prefusion F Vaccine |
| SCCS | Self-controlled Case Series |
| SMR01 | Scottish Morbidity Record 01 |
| US | United States |
| VMT | Vaccine Management Tool |