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Format of Vi ELISAs used by participants.
| Laboratory code | ELISA method |
Vi characteristics |
Antigen coating procedure | |||
|---|---|---|---|---|---|---|
| Name | Format | Status | Biological origin | |||
| 1,5,6, | VaccZyme | Indirect | Not disclosed | S. Typhi | Procedure not disclosed | |
| 1,2,3,4,5,6,7,8,9,10 | Vi poly-l-lysine | Indirect | Native | C. freundii | Pre-coat with poly–l-Lysine to bind Vi | |
| 6 | Biotinylated Vi | Capture | Biotinylated | S. Typhi | Streptavidin coat to bind biotinylated Vi | |
