There are two sides to biodefence.
D023482:Bioterrorism / Q000517:prevention & control*; D021821:Communicable Diseases, Emerging / Q000453:epidemiology / Q000517:prevention & control* / Q000821:virology; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology / Q000209:etiology; D019368:Nature; D045473:Severe acute respiratory syndrome-related coronavirus / Q000235:genetics; D045169:Severe Acute Respiratory Syndrome / Q000453:epidemiology / Q000517:prevention & control* / Q000821:virology