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A old female doctor or scientist is holding a test tube with a biohazard or virus warning label on it biological hazard
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- warn
- danger sign
- biohazard
- hazard
- attention
- caution
- danger
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- caution sign
- alert
- safety signs
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- safe
- elderly woman
- old woman
- african woman
- threat
- female illustration
- old person
- protection
- segurança
- symbol
- adult woman
- female
- woman
- security symbol
- elderly
- illustrations
- doctor symbol
- secure
- adult
- old
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