a diligent student in bacteria neisseria mascot concept with books

bacteri bacteria bacterial bacterium biology book cartoon character clever cocci cute diplococci disease education emoticon emotion expression funny geek generated glasses gonorhea gonorrhoeae happy illness illustration isolated learner magnification mascot meningitidis meningococcal meningococcus microbiology model neisseria pathogen pathogenic school shape skill smart smile spherical student study surface unhealthy vector