In the United States, a decreasing trend of the total number of TB patients is seen with an increasing proportion of TB cases with extrapulmonary TB, resulting in a rising proportion from 7.8% in 1964 to 20% in 2001 ( 5 – 8 ).
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In the United States, a decreasing trend of the total number of TB patients is seen with an increasing proportion of TB cases with extrapulmonary TB, resulting in a rising proportion from 7.8% in 1964 to 20% in 2001 ( 5 – 8 ).