Certain bacteria may develop one or more mutations that turn them into a strain that is immune to the ordinarily lethal effect of one or more antibiotics. (sciencenewsforstudents.org)
Those stellar explosions can have lethal effects on planets orbiting stars even tens of light - years away. (discovermagazine.com)
«This is especially valuable in cancer treatment, where targeted treatment to tumor cells, and the reduction of lethal effects in normal cells, is so critical,» she added. (innovationtoronto.com)