salmonella bacteria animation: typhi, typhimurium and more - causes of enteric typhus and salmonellosis

salmonella rod shaped bacteria agents food toxic streptobacilli mycobacterium microbiology microbes virus germs lactobacillus bacillus bacterial abstract bacteriology antibiotic cell bacterium biological micro disease epidemic health illness scientific research science infection pneumonia laboratory experiment macro medical medicine particle microorganism microscopic transparent organism outbreak sickness pathology spore transmit unhygienic