a diligent student in haemophilus ducreyi mascot concept with books

bacillus book cartoon chains chancroid character clever coccobacillus corona cute dermatology developing disease ducreyi education emoticon emotion expression fastidious funny geek genital glasses haemophilus happy illustration infection isolated learner mascot medical medicine pasteurellaceae research school science scientific shaped skill smart smile streptobacillus student study transmitted treatment vector zygot