bio hazard caution biological danger toxic symbol virus risk biohazard alert |
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navigate by keyword : area attention background bacteria bio biohazard biologic biological biology caution chemical contamination coronavirus coronovirus danger dangerous environment epidemic hazard hazardous icon illustration infected lab label medical medicine mers nc0v poison pollution protect protection radiation research restricted risk safety scientific security sign substance symbol toxic vector virus warning waste yellow zone |
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Bio hazard sign caution. Biological danger toxic symbol, virus risk or biohazard alert on bacteria virus background |
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