| CNS | Central nervous system |
| CSF | Cerebrospinal fluid |
| JCPyV | JC Polyomavirus |
| LSTc | Lactoseries tetrasaccharide c |
| LTAg | Large T antigen |
| NCCR | Non-coding control region |
| PML | Progressive multifocal leukoencephalopathy |
| rrNCCR | Rearranged non-coding control region |
| stAg | Small t antigen |
| VLP | Virus-like particle |