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Can a disease be detected before its sym...

Can a disease be detected before its symptoms appear? Explain the principle involved.

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### Step-by-Step Solution: 1. **Understanding Disease Detection**: - Yes, diseases can be detected before symptoms appear. This is crucial for early intervention and treatment. 2. **Low Concentration of Pathogen**: - When a disease is present but asymptomatic, the pathogen (like bacteria or viruses) is often present in low concentrations in the body. ...
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