infectious diarrhea. close-up of pathogens of intestinal infections

agents bacteria bacterial bacterium bug causative causes closeup diagram diarrhea digestion disease ecoli enteric escherichia gastroenteritis gastrointestinal germ giardia giardiasis ill illness indigestion infection infectious inflammation intestinal intestinalis intestine invasion lamblia macro medical medicine microbe microbiology microorganism microorganisms microscopic norovirus norwalk organism parasite parasites parasitic parasitology poster primary rotavirus salmonella salmonellosis sepsis vector viral virus viruses vomiting winter