Bugs, radicals and nature, reactive or proactive.
Gerkin
David G
DG
D003140:Communicable Disease Control / Q000266:history; D003141:Communicable Diseases / Q000266:history; D004189:Disaster Planning; D004190:Disasters; D004196:Disease Outbreaks / Q000517:prevention & control*; D004501:Education, Medical / Q000266:history; D006077:Government Agencies; D049672:History, 19th Century; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D012308:Risk Management; D023481:Terrorism; D014481:United States; D054543:United States Department of Homeland Security