Dr. Frank Thieme, Manager of Development at Icon Genetics, holds a nicotiana benthamiana plant, which is a close relative of tobacco, in a greenhouse at the company's facilities on August 14 in Halle, Germany. Icon Genetics has developed a process to produce proteins and enzymes from this plant that will be used in the production of ZMapp, which is able to stop infections in monkeys but hasn't been formally tested on humans.