TY - GEN TI - Vigilance needed SN - 1476-4687 PY - 2013///0304 KW - Biohazard Release KW - prevention & control KW - Bioterrorism KW - Guidelines as Topic KW - Humans KW - Influenza A Virus, H5N1 Subtype KW - genetics KW - Influenza, Human KW - Risk Assessment KW - standards KW - Security Measures KW - World Health Organization N1 - Publication Type: Editorial UR - https://doi.org/10.1038/493451b ER -