01973nas a2200265   4500000000100000008004100001653003900042653001900081653001800100653000800118653001000126100001300136700001400149700001300163700001300176700001300189700001300202700001400215245007300229856009900302300001300401490000700414520127200421022001401693       2018                            d10aNeglected tropical diseases (NTDs)10aChagas disease10aMexian border10aUSA10aTexas1 aNolan MS1 aAguilar D1 aBrown EL1 aGunter S1 aRonca SE1 aHanis CL1 aMurray KO00aContinuing evidence of Chagas disease along the Texas-Mexico border.  uhttps://journals.plos.org/plosntds/article/file?id=10.1371/journal.pntd.0006899&type=printable  ae00068990 v123 a<p><strong>BACKGROUND: </strong>Chagas disease is a chronic parasitic infection that progresses to dilated cardiomyopathy in 30% of human cases. Public health efforts target diagnosing asymptomatic cases, as therapeutic efficacy diminishes as irreversible tissue damage progresses. Physician diagnosis of Chagas disease cases in the United States is low, partially due to lack of awareness of the potential burden in the United States.</p>

<p><strong>METHODOLOGY/PRINCIPAL FINDINGS: </strong>The current study tested a patient cohort of 1,196 Starr County, Texas residents using the Hemagen Chagas ELISA Kit as a preliminary screening assay. Samples testing positive using the Hemagen test were subjected to additional confirmatory tests. Two patients (0.17%) without previous Chagas disease diagnosis were identified; both had evidence of acquiring disease in the United States or along the Texas-Mexico border.</p>

<p><strong>CONCLUSIONS/SIGNIFICANCE: </strong>The Texas-Mexico border is a foci of Chagas disease human cases, with a local disease burden potentially twice the national estimate of Hispanic populations. It is imperative that physicians consider persons with residential histories along the Texas-Mexico border for Chagas disease testing.</p>
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