A huge dose would be more likely to contain many diverse strains. (discovermagazine.com)
The danger is that new arrivals from East Asia of more genetically diverse strains of the pathogen could be disastrous for European ash. (sciencedaily.com)
The researchers isolated two related but genetically diverse strains of H. pylori from a 90 - year - old patient with gastric ulcer disease. (genomenewsnetwork.org)