an industrial flashing warning sign informing motorists about covid-19.

2019ncov action alert attention attentioncovid19 biohazard business caution check china close closed closings company corona coronavirus county covid19 danger disease door drivers epidemic flashing front graphic health highway horizontal information message news notice novel pandemic panic passing plan pneumonia poster protection public quarantine road safety shop sign signcovid19 sorry stop store street telling temporary traffic transportation travel updates view virus warning website