Symbol 0659 from ISO 7000 - Title/Meaning: Biological risks Function/description: To indicate a reference to substances that may be hazardous to men, animals, plants, or the environment based on biological activity (for example, holding a virus).
Additional information: 
In case of application as a warning sign the rules according to ISO 3864-1 shall be adhered to. See safety sign ISO 7010-W009 ""Warning, biological hazard"".
Own work using: iso.org/obp/graphics/grs/06a15ff2-4df6-4cfd-a7a9-9d85272eb2d9 200.png
Vectorization:  Mrmw