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.:
amoeba antibacterial bacillus bacteria bacterium basin biology caudatum cholera ciliate clean cleanliness contagion contaminated contamination dirty disease drop euglena food germs hand hands health hygiene icon illustration infection liquid macro medical medicine microbe microbes microbiology microorganism paramecium pictogram pollution prevention safety sanitary sanitation science sickness sign vector virus warning wash washing water