Biohazard

In Unicode, the biohazard sign is U+2623 (☣).
Biohazard is also the name of a book by former Soviet biological warfare researcher Ken Alibek, purporting to expose the former Soviet Union's covert bioweapon program.
| The Biohazard reference article from the English Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org) |

In Unicode, the biohazard sign is U+2623 (☣).