If you were riveted by The Hot Zone, this Harvard Museum of Natural History program is for you. Science author David Quammen explores how a litany of pandemic diseases like Ebola, SARS, and Hendra share a single pattern: they are transmitted to humans by bugs that originate in wild animals. He will speak on Friday, October 19 beginning at 6 pm, and a book signing will follow. Free and open to the public, Geological Lecture Hall, 24 Oxford Street. Free parking in the 52 Oxford Street garage.