Related by context. Frequent words. (Click for all words.) 71 airborne droplets 70 respiratory droplets 64 Pneumonic plague 63 nasal secretions 62 throat secretions 62 fecal oral 61 respiratory secretions 58 airborne spores 58 highly communicable 57 fungal spores 57 sneezing coughing 56 Staphylococcus aureus bacteria 56 Genital herpes 56 vaginal secretions 56 inhaled ingested 55 infected fleas 55 coughing sneezing 55 Ultraviolet light 55 infectious prions 55 noninfectious 55 cough sneeze 54 fever blisters 54 airborne allergens 54 Tularemia 54 ingesting contaminated 54 fecal material 54 diarrhea stomach cramps 53 runny nose sore throat 53 contagious respiratory 53 trigger allergic reactions 53 Bacterial meningitis 53 methicillin resistant S. aureus 53 Meningococcal meningitis 53 Chlamydia pneumoniae 53 pleura 53 flea bites 53 cat dander 52 urushiol 52 bacilli 52 contaminated needles 52 E. coli bacterium 52 encephalitis inflammation 52 Viral meningitis 52 Streptococcus pyogenes 52 mold fungi 52 causes chickenpox 52 bacterial spores 52 chemoprophylaxis 52 viral particles 52 Asbestos fibers 52 droplets 52 genital tract 52 nosocomial infection 52 dehydration abdominal pain 52 bacterial pathogen 52 harmful microorganisms 51 Allergic reactions 51 Genital warts 51 strep bacteria 51 enteroviruses 51 sore throat cough 51 diarrheal illness 51 Acanthamoeba 51 pathogenic microbes 51 gastrointestinal infections 51 mucous membrane 51 animal dander 51 Influenza viruses 51 recontamination 51 respiratory viruses 51 bronchioles 51 E.coli O# 51 giardiasis 51 Avoid touching 51 rectally 51 bacterial fungal 51 pseudomonas 51 combustion gases 51 Bacterial infections 51 sneezing 50 oral herpes 50 irreversible paralysis 50 insect repellent containing DEET 50 fever cough runny nose 50 Salmonella bacteria 50 Noroviruses 50 secretions 50 Swine influenza 50 causative agents 50 urethritis 50 CMV infection 50 Y. pestis 50 lymph vessels 50 Mycobacterium avium 50 meningococcus 50 Bacillus cereus 50 plasmodium 50 infects humans 50 cough runny nose 50 oral mucosa 50 airborne pathogens