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 9,557 TB cases in the United States in 2015 (3.0 cases per 100,000 persons) – a 1.4% increase compared to 2014. Although case count has risen slightly, the TB incidence rate has remained relatively stable since 2013. Utah had 20 confirmed cases (0.7 cases per 100,000 persons) reported in 2016.
Davis County had two new active tuberculosis disease cases reported in 2016 and 112 latent tuberculosis infection (LTBI) cases.
Active Tuberculosis Cases by Year, Davis County, 2002-2016