Dr. Christine Burillo-Kirch earned a Ph.D. in Microbiology & Immunology from the School of Medicine at UNC-Chapel Hill. She has conducted scientific research in bacteriology and immunology for 12 years and has been published in several peer-reviewed scientific journals. The author of Microbes: Discover an Unseen World from Nomad Press, Christine lives in Cary, North Carolina. Alexis Cornell is a graduate of The Center for Cartoon Studies. She lives in Northampton, Massachusetts.