Slide 4. TB Case Rates, United States, 2011. This map shows TB rates for 2011. Thirty-seven states reported a rate less than 3.4TB cases per 100,000, the 2011 national average. Thirteen states and DC reported a rate above 3.4 TB cases per 100,000; these accounted for 67% of the national total in 2011 and have experienced substantial overall decreases in cases and rates from 1992 through 2011.

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