Sources

http://www.cdc.gov/tb/topic/testing/default.htm

http://www.cdc.gov/features/tbsymptoms/

http://www.cdc.gov/tb/topic/treatment/default.htm

http://www.currytbcenter.ucsf.edu/abouttb/tbcontrol_faqs/mainfactorstb.pdf

http://www.cdc.gov/tb/publications/factsheets/general/tb.htm

http://www.cdc.gov/tb/events/worldtbday/history.htm

http://ac.els-cdn.com/S095461110600401X/1-s2.0-S095461110600401X-main.pdf?_tid=0efb37e0-5926-11e4-949f-00000aacb360&acdnat=1413898252_094dc0c7da1b1c1799c6f1c04f51e656d

http://www.lung.org/finding-cures/our-research/trend-reports/TB-Trend-Report.pdf

http://www.mayoclinic.org/diseases-conditions/tuberculosis/basics/risk-factors/con-20021761

http://globaltb.njms.rutgers.edu/tbepi.htm

http://www.cdc.gov/tb/topic/testing/default.htm