agent
bacteria
bio
biohazard
biologic
biological
biology
black
caution
chemical
club
danger
dangerous
environment
epidemic
experiment
forbidden
glow
hazard
icon
illustration
infectious
isolated
lab
laboratory
light
logo
medical
neon
orange
research
restricted
safety
science
security
sign
silhouette
simple
single
symbol
toxic
virus
warfare
warn
warning
waste
weapon
yellow
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