| http://www.w3.org/ns/prov#value | - changes on a chest x-ray that look like past TBLarger reactions (greater than or equal to 10 mm) are considered positive in:People with a known negative test in the past 2 yearsPeople with diabetes, kidney failure, or other conditions that increase their chance of getting active TBHealth care workersInjection drug usersImmigrants who have moved from a country with a high TB rate in the past 5 yea
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