sign biological protection the spread coronavirus china against viral infection |
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| navigate by keyword : 2019ncov alert attention background banner biohazard biological caution china concept corona coronavirus covid covid19 danger dangerous disease epidemic flu global green hazard icon illustration infected infection label medical medicine outbreak pandemic pneumonia protection quarantine risk safety security sign spread stop symbol triangle vector vertical viral virus warning web wuhan yellow zone |
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| Sign of biological protection. The spread of Coronavirus in China. Protection against viral infection. hazard symbol. |
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