This image was acquired from
pixabay. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
germ sick infection health bacteria medicine disease illness medical flu microbe danger microbiology bacterium organism dirty cold influenza contamination healthcare infectious cancer microorganism epidemic attack dangerous vaccine pollution hygiene contagious infected care bacterial research hiv protection treatment parasites growth