raster flat covid-19 flu virus icon

2019ncov axenic bacilla bacillus bacteria bacterium biohazard chill contagious corona coronavirus covid covid19 covid2019 dangerous disease epidemic fever flat flu glyph grippe icon iconquot illustration infect infection infectious influenza mers merscov microbe microbiology microorganism outbreak outbreakquot pandemic pathogen pictogram pneumonia quot raster sars sickness stirrer symbol virus viruses virusquot