Mark has a PhD in entomology with an emphasis on molecular biology and genetics from the University of Florida. He has been a developer of technology for developing transgenic insects, developed insectary methods for producing mosquitoes for release into the field, directed field studies underlying releases of transgenic insects and assisting developing country operations where transgenic insects will be used. He has worked at USDA, the Centers for Disease Control and Prevention (CDC), the International Atomic Energy Agency and the University of Perugia. He is currently a research biologist at the CDC and is based in Atlanta, GA USA. He has contributed book chapters and over 100 peer reviewed publications.