highly contagious disease warning sign

abstract area art background bacteria bacterial badge beware biohazard biological caution clip clipart communicable computer contagious corona coronavirus covid covid19 danger dangerous design disease epidemic flat flu germs graphic graphics hazard health highly icon icons illness illustration infected infection infectious influenza isolated logo logos microbe monkey monkeypox pandemic pictogram pox precaution respiratory rhinovirus risk sars sign signs smallpox stamp stamps stop symbol symbols vector viral virus viruses warning web white zone