cartoon character of shigella sonnei having a megaphone

bacteria bacteriology bacterium biology boydii bullhorn cartoon cell character country cute dysentery emoticon emotion expression funny happy human illustration infection loudhailer loudspeaker magnification mascot medicine megaphone micro microaerophilic microbe microbiology microorganism pathogenic people realistic research scream screaming shiga shigella shigellosis shout smile sonnei speaker unhygienic vector yell