Related by context. Frequent words. (Click for all words.) 71 bacteria 67 microorganism 66 microorganisms 66 bacterium 65 microbes 63 micro organisms 63 micro organism 62 pathogenic bacteria 62 alga 62 fungal spores 62 pathogens 62 organisms 62 Salmonella bacteria 61 bacteria fungi 60 bacterial 60 toxin 60 algae 59 mycobacteria 59 pathogen 59 fungi 59 toxins 59 organic acids 59 bacillus 58 harmful bacteria 58 microbe 58 phages 57 duckweed 57 bacterial strains 57 formic acid 57 cyanobacteria 57 chloramines 57 bacterial pathogens 57 naturally occurring 57 fungus 56 contaminants 56 noroviruses 56 mosquito larvae 56 nematodes 56 Bacteria 56 spores 56 infectious organisms 56 algal 56 coli 55 parasitic worms 55 enzymes 55 roundworms 55 organism 55 pyrethroids 55 Pseudomonas 55 inactivates 55 parasite 55 Vibrio 54 bacteria viruses 54 organic compounds 54 Wolbachia 54 rotenone 54 neurotoxins 54 food borne pathogens 54 protozoa 54 biofilms 54 prions 54 organophosphates 54 microscopic organisms 54 biofilm 54 E. coli bacteria 53 larvae 53 larva 53 insect larvae 53 copepods 53 weed seeds 53 antibacterial properties 53 chloramine 53 toxicants 53 Staphylococcus 53 microbial 53 parasites 52 oxidizes 52 oxidants 52 transgenic plants 52 intestinal bacteria 52 harmful toxins 52 fungal 52 pathogenic 52 neurotoxin 52 allicin 52 sulfur compounds 52 contaminant 52 polysaccharides 52 Helicobacter pylori 51 H. pylori 51 chemicals 51 organic solvents 51 microparticles 51 malaria parasite 51 enzyme 51 filter feeders 51 insects 51 marine organisms 51 digestive enzymes 51 methyl mercury 51 mold spores