Related by context. Frequent words. (Click for all words.) 74 prion 66 bacteria 64 bacterium 62 pathogens 61 microbes 60 proteins 60 micro organisms 60 microorganisms 59 pathogenic bacteria 58 pathogen 58 organisms 58 pathogenic 57 biofilms 56 retrovirus 56 tumor cells 56 organism 56 macrophages 56 bacterial 55 retroviruses 55 amyloid 55 protozoa 55 gut bacteria 55 toxin 54 malaria parasite 54 biofilm 54 microbe 54 scrapie 54 pancreatic cells 54 influenza virus 54 E. coli bacteria 54 diseased cells 53 proteases 53 TB bacteria 53 mammalian cells 53 cancerous cells 53 harmful bacteria 53 parasite 53 antibiotic resistant bacteria 53 H. pylori 53 microorganism 53 Campylobacter 53 epithelial cells 52 autophagy 52 enzymes 52 protein 52 reactive oxygen species 52 Bacteria 52 Escherichia coli 52 amyloid plaques 52 malignant cells 52 microbial 52 peptides 52 malaria parasites 52 NK cells 51 immune cells 51 germ cells 51 ES cells 51 tissues 51 RNAs 51 flu virus 51 genetically engineered mice 51 yeast cells 51 astrocytes 51 avian influenza virus 51 autoantibodies 51 islet cells 51 vCJD 51 antibodies 51 infect humans 51 stem cells 51 influenza viruses 50 cyanobacteria 50 motor neurons 50 spores 50 dendritic cells 50 contaminants 50 S. aureus 50 highly pathogenic 50 protein synthesis 50 intracellular 50 membrane proteins 50 nanotubes 50 RNA molecules 50 organelles 50 germs 50 E. coli 49 amyloid beta 49 coronavirus 49 flu viruses 49 molecules 49 iPS cells 49 diseased tissue 49 cells 49 beta amyloid 49 transmissible 49 fibroblasts 49 innate immune system 49 toxins 49 organic molecules 49 mutations 49 viruses