Tuberculosis

There are an estimated 9-14 million people in the United States infected with M. tuberculosis.  On average, about 10% of infected individuals will develop active tuberculosis (TB) disease at some point in their lives. There were 11,182 TB cases in the United States in 2010 (3.6/100,000) – a 3.1% decline compared to 2009. Utah had 34 (1.2/100,000) cases reported in 2011. Since the 1992 TB resurgence peak in the United States, the number of TB cases reported annually has decreased by 58%.

Davis County had no new active tuberculosis disease cases reported in 2011 and 66 LTBI cases.

Active Tuberculosis Cases by Year, Davis County, 2002-2011

Latent tuberculosis infection (LTBI) is a condition in which TB bacteria are alive but inactive in the body. People with LTBI have no symptoms, can't spread TB to others, and usually have a positive skin test reaction. In 2011, a total of 66 LTBI cases were reported in Davis County.

Latent Tuberculosis Cases by Year, Davis County, 2002-2011

In Davis County, active disease and LTBI are primarily seen in individuals who are foreign-born or have traveled/lived in endemic countries.

LTBI by Place of Birth, Davis County, 2011