Related by context. Frequent words. (Click for all words.) 54 vesicle 54 viral particles 54 phages 53 proteins 53 Salmonella bacteria 53 microorganism 52 pathogen 52 pathogens 51 pathogenic bacteria 51 bacteria 50 bacterium 50 infectious organisms 50 mammalian cells 49 food borne pathogens 49 microparticles 49 antigens 48 outer membrane 48 coli 48 pancreatic cells 48 retroviruses 48 endocytosis 48 plasma membrane 47 bacteriophage 47 microorganisms 47 cells 47 bacterial pathogens 47 fungal spores 46 naturally occurring bacteria 46 cell membranes 46 epithelial cells 46 immune cells 46 micro organism 46 heme 46 digestive enzymes 46 mycobacteria 46 enzymes 46 tissues 46 antibodies 46 toxin 46 cell membrane 46 liposome 46 bacillus 46 viruses 46 bacterial 46 cytoplasm 45 parasite 45 microcapsules 45 chemical messengers 45 Pathogens 45 molecules 45 organism 45 phage 45 spores 45 molecule 45 parasitic worms 45 bloodstream 45 microbe 45 diseased cells 45 intestinal bacteria 45 nanoparticles 44 malaria parasite 44 prions 44 pathogenic 44 SARS coronavirus 44 calcium ions 44 organisms 44 transgenic plants 44 micro organisms 44 monocytes 44 adenoviruses 44 quorum sensing 44 metal ions 44 Plasmodium 43 bacterial strains 43 islet cells 43 intracellular 43 harmful bacteria 43 microbes 43 toxins 43 hormone insulin 43 digestive tracts 42 malaria parasites 42 tumor cells 42 liposomes 42 viral strains 42 Salmonella 42 nerve impulses 42 cysteine 42 germs 42 lipoproteins 41 secretion 41 parasites 41 gut bacteria 41 rumen 41 infect humans 41 insulin hormone 41 bacteria fungi 41 Listeria 41 lipids 41 flu viruses 41 macrophages