DNA vaccination before conception protects Zika virus–exposed pregnant macaques against prolonged viremia and improves fetal outcomes
The impact on a developing fetus is one of the most pressing concerns for developing vaccines or treatments for Zika virus. To assess fetal protection, Van Rompay et al. immunized nonhuman primates with a DNA vaccine before conception and then performed multiple Zika virus challenges in the first few months of pregnancy. Compared to unvaccinated controls, vaccinated animals had reduced viremia in…