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2011 Surveillance Slides

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Slide 20: Primary MDR TB, United States, 1993-2011

Slide 20. Primary MDR TB, United States, 1993–2011. This graph focuses on trends in primary MDR TB (based on initial isolates from persons with no prior history of TB) in the United States from 1993 through 2011. The number of primary MDR TB cases, represented by bars, steadily declined from 407 in 1993 to 115 in 2001. Since then, the total number of primary MDR TB cases has fluctuated from 86 to 132 cases, with 98 cases reported for 2011. Primary MDR TB, shown by the line, decreased from 2.5% in 1993 to approximately 1.1% in 1997, and has fluctuated around 1.0% since then. In 2011, the percentage increased to 1.3%.

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