| |
| |
| | Antigen of Registered Virus | | Immune Serum of Registered Virus ** |
|---|
| | HI | | HI |
|---|
| Immune ** Sera | Ht/Ho | Ratio | Antigens | Ht/Ho | Ratio |
|---|
|
| | ** Hyperimmune mouse sera | | Chikungunya | 40/10240 | 1/256 | Chikungunya | 40/10240 | 1/256 | | Mayaro | 320/10240 | 1/32 | Mayaro | 80/10240 | 1/128 | | Semliki | 160/10240 | 1/64 | Semliki | 40/10240 | 1/256 | | Sindbis | 2560/10240 | 1/4 | Sindbis | 160/10240 | 1/64 | | EEE | 160/10240 | 1/64 | EEE | 80/10240 | 1/128 | | VEE | 80/10240 | 1/128 | VEE | 160/10240 | 1/64 |
|
| The above tabulated data [5] are indicative of the antigenic relationships with other members of serogroup A, using hyperimmune sera. WEE is distinguishable, however, from all other members of the group by NT and usually by CF. For antigenic relationship to newly discovered members of Group A, consult their respective catalogue cards. |
| Rather marked antigenic, cell culture and pathogenic variants have been noted among strains found in nature. |
| For current antigenic classification of WEE virus and other closely related alphaviruses, see Reference [26] . |
| |
