Although the number of tuberculosis cases in the US is at an all-time low, with progressive declines seen for the past 17 years, many goals in the tuberculosis elimination process remain unrealized. This report describes a cluster of four tuberculosis cases in a family, including one case of acquired multidrug resistant tuberculosis. It also underscores some important issues in tuberculosis control today, including significant disparities in the foreign-born population with multidrug resistant tuberculosis as a looming problem, as well as utilization of therapeutic drug level monitoring in complicated cases.
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