Table 3.
SARS-CoV-2 directed IgG cross-reactive neutralizing antibody titres. Summarises the responses of nine participants tested for neutralising antibodies against SARSCoV-2.
| LogNT90 | NT90 | LogNT50 | NT50 | |
|---|---|---|---|---|
| PARTICIPANTS | 1.954 | 1 | 1.699 | 1 |
| 1.954 | 1 | 1.699 | 1 | |
| 1.954 | 1 | 1.699 | 1 | |
| 1.954 | 1 | 1.699 | 1 | |
| 1.954 | 1 | 1.699 | 1 | |
| 1.954 | 1 | 1.699 | 1 | |
| 1.954 | 1 | 1.699 | 1 | |
| 1.954 | 1 | 1.699 | 1 | |
| 1.954 | 1 | 1.699 | 1 |
The highest antibody titre that neutralised 50% and 90% of the virus, NT50 and NT90, respectively, were recorded. The antibody titres were logarithmically scaled to account for minimal differences. Notably, the lower detection limit of the SARS-CoV-2 neutralisation assay was 10, rendering virus titres below this threshold undetectable. Consequently, all responses obtained from the assay fell below the detection limit for positivity. For statistical analysis, NT50 values below det5ection were assumed to be 1.699, while undetectable NT90 values were equated to 1.954.