Table 1.
Serostatus at baseline (Ischgl 1) and follow-up (Ischgl 2)
| Serostatus at follow-up (Ischgl 2), n (%), NT+/total NT assays | ||||||
|---|---|---|---|---|---|---|
| Positive - p | Discordant - d | IgA only - a | Negative - n | Total | ||
| Serostatus at baseline (Ischgl 1), n (%), NTpos/total NT assays | Positive - p | 276 (34.5) 244 NTpos/276 |
82 (10.2) 63 NTpos/82 |
2 (0.2) 2 NTpos/2 |
4 (0.5) 3 NTpos/4 |
364 |
| Discordant - d | 4 (0.5) 2 NTpos/4 |
30 (3.7) 13 NTpos/30 |
1 (0.1) 0 NTpos/1 |
8 (1.0) 2 NTpos/7 |
43 | |
| IgA only - a | 0 (0.0) | 1 (0.1) 0 NTpos/1 |
3 (0.4) 0 NTpos/3 |
7 (0.9) 0 NTpos/7 |
11 | |
| Negative - n | 4 (0.5) 3 NTpos/4 |
5 (0.6) 2 NTpos/5 |
2 (0.2) 0 NTpos/2 |
372 (46.4) 6 NTpos/246 |
383 | |
| Total | 284 (35.5) | 118 (14.7) | 8 (1.0) | 391 (48.8) | 801 | |
NTpos (Neutralizing antibody titer positive) = titer ≥1:16