Author Contributions: Drs Bern, Montgomery, and Moore had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Bern, Montgomery, Herwaldt, Marin-Neto, Moore.
Acquisition of data: Bern, Montgomery, Herwaldt, Rassi, Marin-Neto, Dantas, Maguire, Morillo, Moore.
Analysis and interpretation of data: Bern, Montgomery, Herwaldt, Rassi, Marin-Neto, Dantas, Maguire, Acquatella, Kirchhoff, Gilman, Reyes, Salvatella, Moore.
Drafting of the manuscript: Bern, Montgomery, Moore.
Critical revision of the manuscript for important intellectual content: Bern, Montgomery, Herwaldt, Rassi, Marin-Neto, Dantas, Maguire, Acquatella, Morillo, Kirchhoff, Gilman, Reyes, Salvatella, Moore.
Obtained funding: Herwaldt, Moore.
Administrative, technical, or material support: Bern, Montgomery, Moore.
Study supervision: Bern, Montgomery, Moore.
Financial Disclosures: Dr Kirchhoff reported receiving funding from a National Institutes of Health grant through a subcontract with InBios International Inc; having consultancy relationships with Abbott Laboratories and Ortho-Clinical Diagnostics Inc; receiving payments through licensing agreements with Abbott Laboratories, Ortho-Clinical Diagnostics Inc, and Quest Diagnostics Inc; and owning an equity interest in Goldfinch Diagnostics Inc. All other authors declare no conflicts of interest.
Funding/Support: This study was supported by intramural funding from the US Centers for Disease Control and Prevention (CDC).
Role of the Sponsor: Employees of the CDC were involved in the design and conduct of the study; the collection, management, analysis, and interpretation of the data; and the preparation, review, and approval of the manuscript.
Disclaimer: The findings and conclusions in this report are those of the authors and do not necessarily represent the views of the CDC.
Additional Contributions: We thank Sergio Sosa Estani, MD, PhD (Tulane University, New Orleans, Louisiana, and Centro National de Diagnóstico e Investigación de Endemo-epidemias, ANLIS “Dr Carlos G. Malbrán,” Ministerio de Salud y Ambiente, Buenos Aires, Argentina), Monica Parise, MD, Mark Eberhard, PhD, and Matt Kuehnert, MD (CDC, Atlanta, Georgia), Dan Colley, PhD, and Rick Tarleton, PhD (University of Georgia, Athens), and Dennis Juranek, DVM (retired, CDC, Atlanta), for scientific review and helpful comments; Henry S. Bishop (CDC, Atlanta) for providing parasite images; and Carolyn Erling (CDC, Atlanta) for administrative support. None of these individuals received compensation for their contributions.