a brainy student neisseria gonorrhoeae cartoon character with pencil and glasses

bacteria bacterial bacteriology bacterium biology book cartoon character clever coloured cute disease education emoticon emotion expression funny geek gonococcus gonorrhae gonorrhea gonorrhoea gonorrhoeae graduate happy illness illustration learner mascot medical medicine microbe microbiological microbiology micrograph pathological pathology pencil scanning school science skill smart smile stationery student transmission transmitted vector