yellow and black stripes sign symbol quarantine zone area stop novel coronavirus outbreak covid 2019 ncov symptoms |
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| navigate by keyword : 2019 activity alert area attention ban biohazard biological biology breathing caution china coronavirus covid danger dangerous diagnostic disease epidemic flu hazard health icon illness infected infection inspection medical ncov novel outbreak pandemic pneumonia protection quarantine respiratory safety secure sickness sign stop symbol symptoms threat vaccine viral virus warning wuhan zone |
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| Yellow and black stripes sign symbol quarantine zone area Stop Novel Coronavirus outbreak covid 2019 nCoV symptoms in Wuhan China, vector quarantine biohazard Sign biological activity threat alert |
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