a brainy student haemophilus ducreyi cartoon character with pencil and glasses

bacillus book cartoon chains character clever coccobacillus country cute dermatology developing disease ducreyi education emoticon emotion expression fastidious funny geek genital graduate haemophilus happy illustration infection isolated learner mascot medical medicine pasteurellaceae pencil research school science scientific shaped skill smart smile stationery std sti streptobacillus student transmitted treatment vector