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Volume 23, Number 3—March 2017

Likely Autochthonous Transmission of Trypanosoma cruzi to Humans, South Central Texas, USA

Sarah M. Gunter, Kristy O. Murray, Rodion Gorchakov, Rachel Beddard, Susan N. Rossmann, Susan P. Montgomery, Hilda Rivera, Eric L. Brown, David Aguilar, Lawrence E. Widman, and Melissa N. GarciaComments to Author 
Author affiliations: Baylor College of Medicine, Houston, Texas, USA (S.M. Gunter, K.O. Murray, R. Gorchakov, D. Aguilar, M.N. Garcia); University of Texas School of Public Health, Houston (S.M. Gunter, E.L. Brown); South Texas Tissue and Blood Center, San Antonio, Texas, USA (R. Beddard); Gulf Coast Regional Blood Center, Houston (S.N. Rossmann); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (S.P. Montgomery, H. Rivera); Cardiac Electrophysiology Consultants of South Texas, PA, San Antonio (L.E. Widman)

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Table 2

High-risk activity profile for 11 case-patients with likely autochthonous infection with Trypanosoma cruzi, south central Texas, USA*

Case-patient Birthplace/former residence Current residence Occupational Recreational camping Recreational hunting
1 +++ + ++ ++ +
2 +++ 0 0 + 0
3 + + +++ + +
4 0 0 0 ++ 0
5 +++ 0 + + 0
6 +++ +++ + 0 ++
7 + +++ +++ + 0
8 ++ 0 ++ 0 ++
9 0 +++ + 0 0
10 + + 0 0 0
11 ++ +++ 0 + 0

*Risk was determined through administration of a patient survey. No risk (0) was defined as not living in a rural area and having no history of outdoor occupation or recreational activities. Low risk (+) was defined as ever living in a rural area, having an outdoor occupation, or engaging in hunting or camping in an area with known triatomine activity. Moderate risk (++) was defined as, in addition to low-risk activities, an extensive history of these activities (>1 y), or having slept in a tent in a rural part of Texas. High risk (+++) was defined as, in addition to moderate-risk activities, reporting 1 of the following: reported seeing triatomines, had collective animal housing around the property, or lived or slept in substandard housing.

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Page created: February 17, 2017
Page updated: February 17, 2017
Page reviewed: February 17, 2017
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