Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
abstract allergen art bacteria bad biology cell contaminant danger design disease drawing element epidemic epidemiology fever flat germ headache health helminth hygiene icon ill illness illustration immune infection loupe macro magnifier medical medicine micro microbe microbiology microscopic mold nature organism pandemic pathogen science sick sign symbol vector virus worms