Vigilance needed.
D055885:Biohazard Release / Q000517:prevention & control; D023482:Bioterrorism / Q000517:prevention & control; D017408:Guidelines as Topic; D006801:Humans; D053124:Influenza A Virus, H5N1 Subtype / Q000235:genetics* / Q000472:pathogenicity*; D007251:Influenza, Human / Q000517:prevention & control / Q000821:virology*; D018570:Risk Assessment / Q000592:standards*; D012637:Security Measures / Q000592:standards*; D014944:World Health Organization