Release of a gene-altered virus is halted by U.S. after challenge.
D004274:DNA, Recombinant; D004463:Ecology; D035082:Federal Government; D006076:Government; D033161:Government Regulation; D007221:Industry; D011057:Politics; D012926:Social Control, Formal; D014481:United States
Biomedical and Behavioral Research; Department of Agriculture; Popular Approach/Source