GIANTmicrobes Zombie Virus Plush Toy Even death wont stop this virus from replicating. When lured out of Siberian frost with fresh amoeba, zombie viruses attacked the amoeba and bent them to their will. These 1 micrometer viruses are enormous for a virus, as large as many bacteria. Zombie viruses have unusual and intriguing genetic material, unlike other known lifeforms. Each 5 to 7 inch doll is accompanied by an image of the real microbe it represents, as well as information about the microbe.