staphylococcus pneumoniae cartoon character style speaking on headphone

anatomy aureus bacillus bacteria bacterial bacterium black business cartoon cell cells character cocci cute design direction emoticon emotion expression funny germ germs happy headphone illustration infect infection listening mascot microbacillus micrococcus music office pneumoniae pyogenes research sarcina singing smile song staphylococci staphylococcus streptococci streptococcus style system vector work