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| Identification of Persons Who Have |
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| Clinically Active TB |
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| • | Health
department has ultimate responsibility for |
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| ensuring TB
patients do not transmit TB |
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| Contact
Investigation |
| Purpose of a
contact investigation is to find persons who |
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| • | Have TB
disease so treatment can be given, and further |
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| transmission stopped |
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| • | Have
LTBI so treatment can be given |
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| • | Are at
high risk of developing TB disease and require |
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| treatment until LTBI excluded |
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