title: NIH rejects modified plan to clone shiga toxin.
mesh_terms: D001427:Bacterial Toxins / Q000235:genetics*; D003001:Cloning, Molecular; D003264:Containment of Biohazards; D004926:Escherichia coli / Q000235:genetics; D009316:National Institutes of Health (U.S.); D022603:Shiga Toxins; D014481:United States
chemical_list: D001427:Bacterial Toxins; D022603:Shiga Toxins