CD79A and infection: However, pre-infection anti-ZIKV envelope IgG or IgA antibodies were not higher in this animal, and baseline levels did not correspond to lower ZIKV viral burden in the PLN of L07266 when compared with WNV-negative animals, indicating pre-existing immunity to WNV did not contribute to the early viral clearance in the PLN in this animal (Supplementary Fig. 1).