coronaviridae cartoon in character with sad expression

bacteria bacteriology bacterium bawl beast blubber break cartoon character collection coronaviridae coronavirus creature cry crying cute down emoticon emotion engraved engraving expression germs holerae howl illness illustration immunodeficiency infection influenza mascot microbiology microorganism microscope mutant mycobacterium pandemic pathogen plague rabies sad set sketch sketching sop tears tuberculosis tuberculosiss variola vector virology virus weep yersinia