We conducted an external quality assessment of Zika virus molecular diagnostic tests in Brazil using a new Zika virus standard. Of 15 laboratories, 73% showed limited sensitivity and specificity. Viral load estimates varied significantly. Continuous quality assurance is required for adequate estimates of Zika virus–associated disease and determination of patient care.
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Fischer, C., Pedroso, C., Mendrone, A., de Filippis, A. M. B., Vallinoto, A. C. R., Morais Ribeiro, B., … Drexler, J. F. (2018). External quality assessment for Zika virus molecular diagnostic testing, Brazil. Emerging Infectious Diseases, 24(5), 888–892. https://doi.org/10.3201/eid2405.171747