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The screening procedure through algorithm WHO 1a/1c, 2, and 3
| Algorithm | Household primary screening | Chest X-ray | Smear | Culture | ||
|---|---|---|---|---|---|---|
| 1) | 2) | 3) | ||||
| WHO 1a | ✗ | ✗ | ✗ | |||
| WHO 1c | ✗ | ✗ | ✗ | ✗ | ||
| 2 | ✗ | ✗ | ✗ | ✗ | ✗ | |
| 3 | ✗ | ✗ | ✗ | ✗ | ✗ | ✗ |
(1) cough lasting longer than two weeks; (2) hemoptysis or bloody sputum; (3) cough longer than one week yet less than two weeks, and accompanied with any of the following symptoms: fever, night sweats, chest pain, loss of appetite, fatigue, or weight loss(> 3 kg)
