Alyssa, What's the Biggest Challenge for a Serologist?

Alyssa, I would love to have you take us through the highlights as best we can of the 2017 paper and just everyone listening. Please get that paper. There's so much to discuss. But high level, Alyssa, tell us a little bit about what you did in terms of getting this information to answer the questions that you guys have already talked about. So what did you do?