We describe a method to evaluate the effect of pre-existing immunity against dengue virus on the Zika virus infection by using human serum, primary human cells, and infection quantification by quantitative real-time polymerase chain reaction.
Asad, S., Feitosa-Suntheimer, F., Gold, A., Londono-Renteria, B., Colpitts, T. M. Quantification of Antibody-dependent Enhancement of the Zika Virus in Primary Human Cells. J. Vis. Exp. (143), e58691, doi:10.3791/58691 (2019).