Figure EV1. sfRNA sample preparation and characterization.

• A
  Tris‐borate‐magnesium (TBM) polyacrylamide gel for sfRNAs of DENV2, ZIKV, and WNV, respectively.
• B
  The distribution of the light scattering by sfRNAs as a function of particle radius in solution.
• C–E
  The scattering curves (left), PDDFs (middle), and guinier plots (right) for sfRNAs of DENV2 (C), ZIKV (D), and WNV (E) at various Mg²⁺ concentrations.
• F, G
  R _g (F) and D _max (G) of sfRNAs derived from guinier plots and PDDF calculation were plotted as a function of Mg²⁺ concentration.