group people wearing medical masks prevent disease flu air pollution contaminated world |
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| navigate by keyword : background biohazard character china chinese city contamination corona coronavirus covid19 covid2019 crowd danger disease epidemic face fever flat flu global group health human illness infected infection influenza man mask medical medicine outbreak pandemic people person pneumonia prevention protect protection protective quarantine respiratory safety sick vector virus warning woman |
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| Coronavirus quarantine. Group of people wearing face medical masks to prevent disease protecting from virus, flu, air pollution, contaminated air, world pollution. Infected persons among healthy crowd |
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