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TST, IGRA, and chest CT results of the second-round screening of the close and general contacts of the index case.
| Item | TST | IGRA | Chest CT | |||||
|---|---|---|---|---|---|---|---|---|
| − | + | ++ | +++ | − | + | − | + | |
| Close contacts of the index case | 21·90% (7/32) | 15.60% (5/32) | 12.50% (4/32) | 50.00% (16/32) | 75.00% (24/32) | 25.00% (8/32) | 84.40% (27/32) | 15.70% (5/32) |
| General contacts of the index case | 71.40% (20/28) | 3.60% (1/28) | 10.70% (3/28) | 14.30% (4/28) | 78.10% (25/28) | 10.70% (3/28) | 100.00% (28/28) | 0.00% (0) |
