| Slide 23. Extensively Drug Resistant (XDR) TB, as Defined on Initial Drug Susceptibility Testing (DST), United States, 1993–2009. This graph shows the annual number of counted XDR TB cases as defined on
initial DST from 1993-2009, reported as of August 10, 2009. No XDR TB cases were reported in 2009. The
most reported in a single year was 10 in 1993, while there were no cases reported in 2003 and 2009. There is
no apparent trend in the number of cases over time.
Back to 2009 Surveillance Slides Main