microbe, parasite, bacterium, worm, virus, sperm, silhouette set. microorganisms under the microscope.

bacteria bacterium biology cage cartoon cell dish emblem epidemic flu germ health icon illness illustration infection infections logo loupe macro magnification magnifier magnifying medical medicine micro microbe microbiology microflora microorganism microorganisms microrganisms microscope microscopic organism parasite petri plankton polliwog science set sick sign silhouette sperm symbol tadpole under vector virus white worm