ERRATUM
Volume 54, no. 1, p. 64–67, 2016. Page 64, abstract, lines 2–4: The parenthetical reference at the end of the sentence beginning “Recently, …” should read “(R. Patel, E. A. Vetter, W. S. Harmsen, C. D. Schleck, H. J. Fadel, and F. R. Cockerill III, J Clin Microbiol 49:4047–4051, 2011, http://dx.doi.org/10.1128/JCM.01314-11).”