 Thayer-Martin agar is a chocolate agar plate (heated blood agar) containing nutrients and antimicrobials (vancomycin, colistin, nystatin, and trimethoprim).This agar preparation facilitates the growth of "Neisseria" species while inhibiting the growth of contaminating bacteria and fungi.Martin Lewis and New York City agar are other types of selective chocolate agar commonly used for "Neisseria" growth.