Assertion: biological agent | /r/AtLocation | material
Facets:
Source sentences:
text: A considerable proportion of the global workforce is exposed to biological agents in either when use of biological agents is deliberate (for example in antibiotics or biotechnological production) or it is known that the biological agent is present (for example when examining biological samples) or in and unintended manner when biological agents are present in the materials used (food, waste, soil, etc.) or when they are spread or produced by the work process (for example in composting).