The first symptom of active TB develops about .......... after infection.

6-8 weeks

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1 week

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1 month

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6-8 days

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Solution

The correct option is A 6-8 weeks
Tuberculosis (TB) is a disease caused by the bacteria Mycobacterium tuberculosis, which affects the lungs. In most of the cases, infected people do not show any symptom in the early infection stage. The first symptom of active TB develops about 6-8 weeks after infection. The most common symptoms of TB include weight loss, fever, night sweats and cough. So, the correct option is A.

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