our conversation with your calls, emails, tweets, and facebook questions, live at noon eastern on "bo booktv. "washington journal" continues. host: janet tobias is the director and producer of the new documentary, "unseen enemy," and friend of the network, dr. anthony though fauci. what have you learned in working on this? guest: this is an extraordinary demonstration of the kinds of challenges you have of emerging and reemerging infectious diseases, the way the film approaches what the background of disease is and what the response is, to the actual people who were involved, i think it's an extraordinary and dramatic and very profound look at the reality of emerging outbreaks and the impact they have on people who get involved in things such as ebola and all those kinds of important diseases. host: jenna tobias, definitions on the table and we will talk about your documentary. explain the differences between epidemic, endemic, and pandemic. guest: if we don't do a good job of endemic, and democrat will cross borders. then it becomes an epidemic. villagent from a small to across oceans, it i

our conversation with your calls, emails, tweets, and facebook questions, live at noon eastern on "bo booktv"washington journal" continues. host: janet tobias is the director and producer of the new documentary, "unseen enemy," and friend of the network, dr. anthony though fauci. what have you learned in working on this? guest: this is an extraordinary demonstration of the kinds of challenges you have of emerging and r