| AGES | Austrian Agency for Health and Food Safety |
| bp | base pair |
| CEC | central European clade |
| CI | confidence interval |
| Cq | cycle threshold |
| EU | European Union |
| GC | guanine–cytosine |
| HERA | Health Emergency Preparedness and Response Authority |
| IVET | Institute for Veterinary Disease Control |
| MFP | ModelFinder Plus |
| ML | maximum likelihood |
| N/A | not available |
| NCBI | National Center for Biotechnology Information |
| NGS | next-generation sequencing |
| ONT | Oxford Nanopore Technologies |
| PCR | polymerase chain reaction |
| RT-PCR | reverse-transcription polymerase chain reaction |
| SD | standard deviation |
| SEEC | south-eastern European clade |
| WGA | whole-genome amplification |
| WGS | whole-genome sequencing |
| WNV | West Nile virus |