Isolation text on blackboard, concept background
Schlüsselwörter
concept,
text,
word,
hand,
chalk,
colours,
wooden,
blackboard,
board,
black,
animal,
background,
bio,
biohazard,
biologic,
biological,
chemical,
contamination,
danger,
dangerous,
disease,
epidemic,
hazard,
health care,
human,
disease,
infection,
isolated,
isolation,
medicals,
medicine,
pollution,
preventing,
prevention,
protection,
quarantine,
radiation,
radioactive,
restricted,
risk,
safety,
security,
separation,
stop,
toxic,
virus
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