NVAX earnings call for the period ending December 31, 2018.: Good day, ladies and gentlemen, and welcome to the Novavax fourth-quarter 2018 financial results conference call. [Operator instructions] As a reminder, this call is being recorded. I would now like to introduce your host for today's conference, Ms. Erika Trahan. Thank you, operator. Good afternoon. I would like to thank everyone for joining today's call to discuss fourth-quarter and full-year 2018 operational highlights and financial results.