Prisons around the world are reservoirs that generate drug resistant tuberculosis, and when infected prisoners are released the disease can follow them back to their communities.  Skin tests and chest X-rays can indicate the presence of TB, but not whether the Micobacterium tuberculosis is drug resistant.  DNA testing, however, can make that determination and this piece reports on how Stanford scientist’s used Cepheid’s  (Sunnyvale, CA)“GeneXpert” sequencer to identify drug resistant TB in prison populations. MORE