One of the big questions many are asking is when will there be a viable vaccine? The CDC pushed out an ambitious timeline this week, telling states to prepare for a Covid-19 vaccine by early November... but the WHO is pushing back, declaring there will not be a widespread coronavirus vaccine until mid 2021. To help us break down the latest in vaccine news, we spoke to David Dodd, Chairman & CEO of GeoVax, a biotechnology company established to develop effective and safe vaccines.