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. 2018 Mar 27;9:111. doi: 10.3389/fneur.2018.00111

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Copyright © 2018 Murray, Nolan, Ronca, Datta, Govindarajan, Narayana, Salazar, Woods and Hasbun.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Study participant enrollment. From 2002 to 2012, a total of 262 patients with a history of West Nile virus (WNV) infection have been enrolled as research participants in this longitudinal cohort. Of the 262 potential participants, 190 were invited to participate. A total of 72 enrolled participants were not invited due to death (n = 29), additional tests determined a false positive WNV status (n = 11), lost-to-follow-up since initial enrollment (n = 26), or declined further participation since initial enrollment (n = 6). Of the 190 invited participants, 117 took part in the neurologic and the neurocognitive evaluations. Failure to take part was due to lack of desire to participate, inability to come to the Texas Medical Center for extensive testing, or unspecified reasons.