Table 1. TBEV strains used in this study.
Strain | Year of isolation | Source of isolation | Passage history | Accession No | HA test (titers) | Infectivity in PS cells on 72 h pi (PFU/ml) |
Vs | 1961 | Patient blood | Unknown | L40361 | 1∶1280 | 2−8×106 |
Yar 71 | 1999 | I. persulcatus | 7 in PS | EU444077 | 0 | 2−8×106 |
Yar114 | 2001 | I. persulcatus | 4 in PS and 2 in mice | EU444078 | 0 | 2−8×106 |
Yar 46-2 | 2001 | Patient CNS | 5 in PS and 2 in mice | EU444079 | 0 | 2−8×106 |
Yar 48 | 2000 | I. persulcatus | 5 in PS | EU444080 | 0 | 2−8×106 |
pGGVs | 2007 | Infectious clone | 1 in PS | 1∶640 | 2−8×106 | |
IC-D67G | 2007 | Infectious clone | 1 in PS | 0 | 2−8×106 | |
IC-E122G | 2007 | Infectious clone | 1 in PS | 0 | 2−8×106 | |
IC-D277A | 2007 | Infectious clone | 1 in PS | 0 | 2−8×106 | |
IC-T175N | 2007 | Infectious clone | 1 in PS | 1∶640 | 2−8×106 |