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| |
| | Ang'mom Reisolate Antigen | Ang'mom Reisolate Imm. Serum |
|---|
| | HI | CF | PI | HI | CF | | PI |
|---|
| Immune Sera or Antigens/viruses | Ht/Ho | Ratio | Ht/Ho | Ratio | | Ht/Ho | Ratio | Ht/Ho | Ratio | |
|---|
|
| | Chikungunya | 160/320 | 1/2 | 64/256 | 1/4 | 20 | 20/2560 | 1/128 | <8/128 | <1/16 | 0 | | Semliki(1 inj) | <20/2560 | <1/128 | <8/256 | <1/32 | 7 | <20/2560 | <1/128 | <8/128 | <1/16 | 0 | | Semliki(6 inj) | | | | | 20 | | | | | | | Sindbis | <20/1280 | <1/64 | | | 0 | <20/2560 | <1/128 | | | 0 | | Middelburg | <20/320 | <1/16 | | | 0 | <20/2560 | <1/128 | | | 0 |
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| Except for the plaque-inhibition results for chikungunya virus and antibody, all others were obtained with the MP 30 (Gulu) strain, not the prototype. |
| PI: Plaque inhibition: zone diam. in mm. |
| Antisera: prototype, chikungunya and Sindbis - mouse, 1 inoc. bled at 14 days Semliki and Middelburg - guinea pig. |
| Rabbit antisera, and multiple inoculation mouse antisera, to ONN inhibit chikungunya plaques to a similar degree. |
| SIRACA has antigenically classified ONN virus as a subtype of chikungunya virus. Both viruses have been placed in the Semliki Forest virus complex of serogroup A [7] . |
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