a brainy student salmonella enterica cartoon character with pencil and glasses

bacillus bacteria bacterial bacteriology bacterium biological biology book cartoon cell character clever cute division education emoticon emotion enterobacteria enterobacterium enterotoxins expression funny geek graduate happy illustration learner mascot medicine microbe microbial microbiological microbiology microorganism pathogen pathogenic pathological pathology pencil poisoning salmonellosis school skill smart smile stationery student transmission vector