Esper and the Merry TWiXters analyze the latest data on Zika virus and microcephaly in Brazil, and discuss publications on a mouse model for disease, infection of a fetus, mosquito vector competence, and the cryo-EM structure of the virus particle.

Vincent, Rich, Carolyn, and Sara recorded TWiV at the 31st Annual Meeting of the American Society for Virology in Madison, where they discussed genetic conflict between viral and human genes, and how the placenta protects the fetus against viral infection.