M. J. Ward,J. Alger,M. Berrueta,H. Bock,P. Buekens,M. L. Cafferata,A. Ciganda,J. García,K. García,W. Lopez,I. Lorenzana,L. Parham and D. M. Wesson. Zika Virus and the World Health Organization Criteria for Determining Recent Infection Using Plaque Reduction Neutralization Testing. Am J Trop Med Hyg. 2018;99(3):10.4269/ajtmh.18-0237.