At noon ET on Thursday Sept. 14, Epidemic host Céline Gounder and her guests will come together for a live web event. Click here to register for the event.In Conversation With Host Céline Gounder:Helene D. Gayle, a physician and an epidemiologist, is president of Spelman College. She is a board member of the Bill & Melinda Gates Foundation and past director of the foundation’s program on HIV, tuberculosis, and reproductive health. She spent two decades with the Centers for Disease Control and Prevention focusing primarily on HIV/AIDS prevention and global health.William H. “Bill” Foege is an epidemiologist and a physician, and was a leader in the campaign to end smallpox during the 1970s. Foege is featured in Episode 2 of the “Eradicating Smallpox” docuseries.Submit your questions for the panel here.