hand drawn microbiology set. gram positive bacteria.

aeruginosa aureus bacillus bacteria bacterium biology cell collection color corynebacterium creature disease epidemic escherihia fever flu germ health helycobacter illness infection life medical medicine micro microbe microbiology micrococcus microorganism microscope microscopic mold organism pathogen pseudomonas pylori science set shape sick sickness sign small staphylococcus streptococcus symbol vibrio virus