title: Biological security in a changed world.
authors.forename: C F
authors.initials: CF
authors.lastname: Chyba
mesh_terms: D001694:Biological Warfare / Q000517:prevention & control; D023482:Bioterrorism / Q000517:prevention & control; D019049:Developed Countries; D003906:Developing Countries; D004812:Epidemiologic Methods; D006801:Humans; D011634:Public Health; D012637:Security Measures