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shan shan
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Posts: 684
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6 years ago
State and local police powers provide surveillance activities. Health departments usually have legal authority to investigate unusual:
 
  1. Pandemics
  2. Clusters of illness
  3. World trends of disease
  4. Cases of the common cold and pneumonia
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canelocanelo
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6 years ago
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shan Author
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6 years ago
You make an excellent tutor!
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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2 hours ago
Helped a lot
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