A biological hazard or biohazard is an organism, or substance derived from an organism, that poses a threat to (primarily) human health. This can include medical waste or samples of a microorganism, virus or toxin (from a biological source) that can impact human health. It can also include substances harmful to animals. The term and its associated symbol is generally used as a warning, so that those potentially exposed to the substances will know to take precautions. There is also a biohazard HCS/WHMIS logo which utilizes the same symbol.
In Unicode, the biohazard sign is U+2623 (☣).
Biohazardous agents are classified for transportation by UN number:
UN 2814 (Infectious Substance, Affecting Humans)
UN 2900 (Infectious Substance, Affecting Animals)
UN 3373 (Diagnostic Specimen or Clinical Specimen or Biological Substance, Category B)
UN 3291 (Medical Waste
In Unicode, the biohazard sign is U+2623 (☣).
Biohazardous agents are classified for transportation by UN number:
UN 2814 (Infectious Substance, Affecting Humans)
UN 2900 (Infectious Substance, Affecting Animals)
UN 3373 (Diagnostic Specimen or Clinical Specimen or Biological Substance, Category B)
UN 3291 (Medical Waste
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