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| Key characteristics of public health |
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| surveillance systems |
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| Two critical
elements in this definition: |
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| n | Ongoing |
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| – | (regularly
occurring, not episodic in nature) use of |
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| collected data |
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| n | Demands system of
efficient analysis and |
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| dissemination |
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| – | For public health
purposes |
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| 14 |