Characterizing tuberculosis genotype clusters along the United States–Mexico border
Published Date:Mar 2014
Source:Int J Tuberc Lung Dis. 18(3):289-291.
Emigrants And Immigrants
Emigration And Immigration
United States Epidemiology
Pubmed Central ID:PMC4718565
Funding:CC999999/Intramural CDC HHS/United States
Description:We examined the growth of tuberculosis (TB) genotype clusters during 2005-2010 in the United States, categorized by country of origin and ethnicity of the index case and geographic proximity to the US-Mexico border at the time of TB diagnosis. Nationwide, 38.9% of cases subsequent to Mexico-born index cases were US-born. Among clusters following US-born Hispanic and US-born non-Hispanic index cases, respectively 29.2% and 5.3% of subsequent cluster members were Mexico-born. In border areas, the majority of subsequent cases were Mexico-born following US-born Hispanic (56.4%) and US-born non-Hispanic (55.6%) index cases. These findings suggest that TB transmission commonly occurs between US-born and Mexico-born persons. Along the US-Mexico border, prioritizing TB genotype clusters following US-born index cases for investigation may prevent subsequent cases among both US-born and Mexico-born persons.
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