Slide 22. Primary MDR TB in U.S.-born vs. Foreign-born Persons, United States, 1993–2010.  This graph highlights primary MDR TB in U.S.-born versus foreign-born persons.  The percentage with primary MDR TB has declined among both groups, although the decline in the U.S.-born has been greater.  As a result, the proportion of primary MDR TB cases in the US that are attributed to foreign-born persons increased from approximately 25% in 1993 to 82% in 2010 (not shown on slide).  Among the U.S.-born, the percentage with primary MDR TB remained between 0.4% and 0.7% from 1999 through 2009 and was 0.5% in 2010.  The percentage among foreign-born persons has fluctuated year by year, while averaging approximately 1.5% from 1999 through 2010.

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