![]() |
![]() |
![]() |
front |1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |review |
The virus:
A lentivirus. Unrelated to HIV. The virus can be isolated in T cell lines which become IF-positive, then die. Isolates vary not only in virulence but also antigenically. Tenfold difference in VN titre and no vaccinal protection between USA prototype (Petulama) and a British isolate (Hayling Island). |