| AFM | Acute flaccid myelitis |
| CVA | Cerebrovascular accident |
| CSF | Cerebrospinal fluid |
| EV-D | Enterovirus species D |
| HT | Hypertension |
| kbp | Kilobase pairs |
| ML | Maximum likelihood |
| MRMP | Macrolide-resistant Mycoplasma pneumoniae |
| MRSA | Methicillin-resistant Staphylococcus aureus |
| NPA | Nasopharyngeal aspirate |
| NPS | Nasopharyngeal swab |
| RACE | Rapid amplification of cDNA ends |
| RD | Rhabdomyosarcoma |
| RDP | Recombination Detection Program |
| RSV | Respiratory syncytial virus |
| RT-PCR | Reverse transcription polymerase chain reaction |
| URTI | Upper respiratory tract infection |
| US | United States |
| UTR | Untranslated region |