Related by context. All words. (Click for frequent words.) 69 respiratory infection 68 respiratory illnesses 68 pneumonia 63 respiratory symptoms 63 bronchitis 63 respiratory infections 63 illness 62 respiratory ailments 61 gastro intestinal illness 60 viral infection 60 respiratory ailment 59 acute gastroenteritis 59 lung disease 59 influenza 59 viral meningitis 59 diarrheal illness 59 illnesses 59 legionnaire disease 59 flu 58 Legionnaire disease 58 flulike illness 58 noro virus 58 meningoencephalitis 58 asthma 58 flulike 58 legionnaires disease 58 lung infection 57 viral pneumonia 57 respiratory diseases 57 bacterial infection 57 infection 57 gastroenteritis 57 gastrointestinal illness 56 viral gastroenteritis 56 bacterial pneumonia 56 Noro virus 56 meningococcal infection 56 H#N# virus 56 sore throat 56 mosquito borne illness 56 flulike symptoms 56 chicken pox 55 lung diseases 55 bacterial meningitis 55 respiratory 55 salmonella infection 55 atypical pneumonia 55 Legionnaires disease 55 Norovirus infection 55 listeria infection 55 tick borne disease 55 cutaneous anthrax 54 respiratory tract infection 54 chickenpox 54 vibriosis 54 flu virus 54 sore throat fever 54 mosquito borne virus 54 H1NI flu 54 breathing difficulties 54 meningitis 54 fevers 54 rotavirus infections 54 tuberculosis 54 lung ailment 54 mosquito borne disease 54 swine flu 54 H#N#virus 54 bronchiolitis 54 gastroenteritis outbreaks 54 tick borne illness 54 Legionnaire Disease 53 C. diff infection 53 Shigellosis 53 mumps 53 pneumococcal meningitis 53 Klebsiella bacteria 53 diarrheal illnesses 53 symptoms 53 contagious bacterial infection 53 ear infection 53 typhoid fever 53 neurological ailment 53 pulmonary tuberculosis 53 invasive meningococcal disease 53 shigellosis 53 respiratory syndrome 53 respiratory distress 53 whooping cough 53 Typhoid fever 53 Adenoviruses usually cause 53 severe respiratory distress 53 dengue haemorrhagic fever 53 C diff infection 53 A/H#N# virus 53 meningococcal disease 53 waterborne illness 53 norovirus outbreaks 53 asthma bronchitis 53 norovirus infection 52 gastro enteritis 52 H#N# 52 stomach bug 52 Parvovirus 52 diarrhea 52 Sinus infections 52 toxoplasmosis 52 West Nile encephalitis 52 RSV infections 52 highly contagious 52 infections 52 pertussis 52 tick borne illnesses 52 acute respiratory infection 52 C. diff 52 WNV infection 52 feline distemper 52 lung ailments 52 acute rheumatic fever 52 chikungunya fever 52 MRSA staph infection 52 E.coli O# 52 hemolytic uremic syndrome HUS 52 mosquito borne infection 52 gastrointestinal infection 52 encephalitis 52 Staph infection 52 streptococcus suis 52 Salmonella infection 52 Guillain Barré Syndrome 52 haemorrhagic fever 52 Coxsackie virus 52 C. diff infections 52 C. gattii 52 disease 52 H#N# influenza 51 dengue fever 51 pneumococcal pneumonia 51 norovirus 51 E.coli O# infection 51 acute bronchitis 51 H1 N1 virus 51 Parvo Virus 51 shigella 51 flu outbreak 51 colds 51 upper respiratory 51 swine Flu 51 febrile illness 51 RMSF 51 Pneumonic plague 51 neurological symptoms 51 acute sinusitis 51 conjunctivitis 51 Legionnaires Disease 51 Chikungunya fever 51 bug Clostridium difficile 51 Dengue fever 51 Listeria infections 51 tracheitis 51 ailment 51 viral fever 51 Respiratory infections 51 Parvo virus 51 Streptococcus suis 51 swine flu virus 51 contagious disease 51 hantavirus pulmonary syndrome 51 viral haemorrhagic fever 51 waterborne parasite 51 C. difficile infections 51 superbug 51 Rotavirus 51 latent tuberculosis 51 fever coughs 51 Rotavirus infection 51 Guillain Barré syndrome 51 Kennel cough 51 Chickenpox 51 strep throat 51 coldlike symptoms 51 Dengue hemorrhagic fever 51 giardiasis 51 viral encephalitis 51 upper respiratory illnesses 51 asthma bronchitis emphysema 51 persistent cough 51 diarrheal disease 50 gastro intestinal infections 50 parvo virus 50 H#N# flu 50 melioidosis 50 Norovirus 50 severe diarrhea 50 measles 50 bronchitis asthma 50 infectious syphilis 50 Marburg haemorrhagic fever 50 H#N# influenza virus 50 Meningococcal disease 50 acid suppressive medication 50 S. aureus infection 50 asthmatic symptoms 50 sore throats 50 fever chills cough 50 SARS 50 contagious bacterial 50 antibiotic resistant infection 50 falciparum malaria 50 mumps outbreak 50 upper respiratory ailments 50 emphysema 50 Cryptosporidiosis 50 bronchitis pneumonia 50 parasitic infection 50 invasive pneumococcal 50 highly pathogenic virus 50 Strep throat 50 campylobacteriosis 50 gastrointestinal anthrax 50 cryptosporidiosis 50 meningococcal septicemia 50 staph infection MRSA 50 asthma chronic bronchitis 50 COPD emphysema 50 flu A/H#N# 50 AH#N# flu 50 swimmer itch 50 blastomycosis 50 Hantavirus 50 diease 50 influenza A/H#N# 50 paralytic polio 50 bacterium Neisseria meningitidis 50 Clostridium difficile bacteria 50 A/H#N# flu virus 50 ciguatera 50 vomiting bug 50 C difficile infection 50 Rocky Mountain Spotted Fever 50 flea bites 50 monkeypox 50 pH#N# 50 mosquito borne viruses 50 streptococcal infection 50 Norovirus bug 50 hantavirus infection 50 shigella bacteria 50 HINI virus 50 contagious norovirus 50 ailments 50 monkeypox virus 50 Norovirus outbreaks 50 CRKP 49 tick bite 49 lung cancer mesothelioma 49 H7 avian flu 49 appendicitis 49 La Crosse encephalitis 49 diahorrea 49 meningococcal meningitis 49 Pneumonia 49 myopericarditis 49 C. difficile outbreak 49 Legionella infection 49 Staphylococcus aureus MRSA 49 stomach ailments 49 A/H#N# infection 49 HFMD 49 chronic lung 49 gastro outbreak 49 mosquito borne viral 49 MRSA 49 N#H# virus 49 rotavirus diarrhea 49 chronic respiratory illnesses 49 Hemolytic Uremic Syndrome HUS 49 gastrointestinal illnesses 49 typhoid 49 Whooping cough 49 legionellosis 49 C. difficile infection 49 A/H#N# flu 49 flu bug 49 sporadic CJD 49 Clostridium difficile infection 49 golden staph 49 Bacterial pneumonia 49 pesticide poisoning 49 parasite cryptosporidium 49 persistent wheezing 49 Campylobacter infection 49 asthma exacerbations 49 H7 virus 49 Viral gastroenteritis 49 sinus infection 49 aspergillus 49 parainfluenza 49 Legionella pneumonia 49 deadly superbug MRSA 49 Norovirus outbreak 49 tummy bugs 49 coughing spasms 49 symptons 49 fungal meningitis 49 H1NI virus 49 mosquito borne dengue fever 49 MRSA infection 49 pneumonias 49 respiratory viruses 49 norovirus outbreak 49 streptococcus bacteria 49 mycoplasma bacteria 49 equine herpes 49 hemorrhagic dengue fever 49 enterovirus infection 49 MRSA infections 49 clostridium difficile infection 49 virus 49 nasal congestion sore throat 49 C. difficile bacterium 49 interstitial pulmonary fibrosis 49 campylobacter jejuni 49 lung infections 49 fungal keratitis 49 C. Diff 49 croup 49 streptococcus pneumoniae 49 bronchial pneumonia 49 Viral conjunctivitis 49 nagging cough 49 Equine herpes 49 Lyme disease 49 necrotising fasciitis 49 babesiosis 49 sinus infections 49 mononucleosis 48 Jakarta Sulianti Saroso 48 antibiotic resistant bacterial infection 48 secondary bacterial infections 48 E.coli infection 48 C. difficile 48 pneumococcal infection 48 HIN1 virus 48 ehrlichiosis 48 XDR tuberculosis 48 Vibrio infections 48 gastrointestinal ailments 48 seasonal influenza 48 roundups expose 48 Bacterial meningitis 48 Guillain Barre 48 strep infections 48 upper respiratory infections 48 bloodstream infection 48 acute respiratory infections 48 Severe Acute Respiratory Syndrome 48 diseas 48 unexplained illnesses 48 whooping cough pertussis 48 fine particulate 48 chlorine inhalation 48 heart arrhythmia 48 bronchial asthma 48 enterovirus infections 48 leptospirosis 48 gastro intestinal diseases 48 varicella infection 48 Foodborne illness 48 C. difficile diarrhea 48 systemic scleroderma 48 DVT blood clots 48 flulike virus 48 E.coli bug 48 seasonal flus 48 bronchopneumonia 48 metapneumovirus 48 Salmonella infections 48 coughs 48 meningococcemia 48 gastrointestinal ailment 48 strep 48 superbug Clostridium difficile 48 Viral meningitis 48 whooping cough outbreak 48 clostridium difficile 48 infectious gastroenteritis 48 tularemia 48 legionella bacteria 48 Campylobacter bacteria 48 pneumococcal infections 48 H5NI strain 48 foodborne diseases 48 Legionella bacteria 48 intestinal infections 48 nosocomial 48 #/#-related illnesses 48 profuse diarrhea 48 myocarditis 48 influenza outbreaks 48 undulant fever 48 cough wheeze 48 amphibole asbestos 48 cryptococcal meningitis 48 Tularemia 48 superbug MRSA 48 coughing wheezing 48 acute diarrhea 48 bacteraemia 48 allergies 48 asthma emphysema bronchitis 48 Pneumococcal pneumonia 48 Scarlet fever 48 tonsillitis 48 Salmonellosis 48 Carbon Monoxide poisoning 48 C.difficile 48 staphylococcus infections 48 throat irritation 48 superbug C. difficile 48 Respiratory syncytial virus 48 Viral infections 48 Ciguatera poisoning 48 meningococcus 48 meningococcal 48 H1NI influenza 47 E coli O# 47 serratia 47 antibiotic resistant superbug 47 E. coli infection 47 campylobacter infection 47 reactive arthritis 47 scabies outbreak 47 parvovirus 47 dengue hemorrhagic fever 47 O# strain 47 A/H#N# influenza 47 scratchy throats 47 myalgic encephalomyelitis ME 47 aggravate asthma 47 methemoglobinemia 47 febrile convulsions 47 H#N# strain 47 acute febrile 47 lyssavirus 47 Influenza 47 Reye Syndrome 47 deadly Hendra virus 47 H1NI 47 HINI flu 47 Vitamin B# deficiency 47 Dr Van Buynder 47 Hemolytic Uremic Syndrome 47 Chronic cough 47 Pneumococcal meningitis 47 chronic respiratory 47 Rotavirus causes 47 Infant botulism 47 Distemper 47 aseptic meningitis 47 paralytic poliomyelitis 47 staphylococcus infection 47 Bronchiolitis 47 meningo encephalitis 47 mucormycosis 47 sniffles sneezes 47 childbed fever 47 hemophagocytic lymphohistiocytosis 47 waterborne bacteria 47 hantavirus 47 Eastern equine encephalitis 47 pneumonia bronchitis 47 fungal infection 47 AH#N# virus 47 necrotizing pneumonia 47 bacterial sinusitis 47 asthmatic 47 broncho pneumonia 47 Streptococcus suis bacteria 47 Bronchitis 47 chikungunya 47 c diff 47 manganese poisoning 47 avian cholera 47 respiratory viral infections 47 nose bleeds headaches 47 Peanut allergies 47 hemorrhagic dengue 47 Ebola fever 47 mutated virus 47 P. falciparum malaria 47 canine parvovirus 47 pesticide poisonings 47 CO poisoning 47 CA MRSA infections 47 asbestosis 47 Mycoplasma pneumoniae 47 Hendra virus infection 47 fever cough chills 47 waterborne illnesses 47 spider bites 47 Gastroenteritis 47 psittacosis 47 elephant herpesvirus 47 Legionella pneumophila 47 pulmonary hemorrhage 47 streptococcus suis bacteria 47 fowl cholera 47 Meningococcal Meningitis 47 sicknesses 47 arsenicosis 47 haemolytic anemia 47 influenza A/H#N# virus 47 dengue hemorrhagic fever DHF 47 incurable lung cancer 47 Bairnsdale ulcer 47 infectious diarrhea 47 naturally occurring anthrax 47 norovirus bug 47 Neisseria meningitides 47 lung cancer 47 respiratory irritations 47 botulism 47 Genital herpes 47 pulmonary diseases 47 highly contagious norovirus 47 jaundice 47 H1 N1 47 Fujian strain 47 bronchitis sinusitis 47 coronavirus 47 A/H#N# flu cases 47 EV# virus 47 neurocysticercosis 47 H#N# Influenza virus 47 kennel cough 47 Parvo 47 scrub typhus 47 sickness 47 upper airway obstruction 47 C Diff 47 Chikungunya virus 47 rhinovirus infection 47 noninfectious 47 IgA nephropathy 47 pancreatitis 47 Japanese Encephalitis JE 47 Reye syndrome rare 47 vesicular stomatitis 47 induced asthma 47 virus RSV 47 Ehrlichiosis 47 West Nile virus 46 asthmatic bronchitis 46 Crimean Congo Haemorrhagic Fever 46 acute respiratory tract infection 46 bacteria Streptococcus pneumoniae 46 runny nose 46 COPD 46 skin rashes 46 sinusitis 46 tick bites 46 tummy bug 46 highly communicable 46 TB germ 46 air pollution 46 hemorrhagic fever 46 intestinal distress 46 debilitating migraine headaches 46 haemolytic uraemic syndrome 46 malignant mesothelioma 46 atopic eczema 46 mosquito borne illnesses 46 Iron deficiency anemia 46 Salmonella typhi 46 bacterial pneumonias 46 equine herpes virus 46 neonatal sepsis 46 Meningococcal meningitis 46 nasal stuffiness 46 E. coli bacterial infection 46 distemper virus 46 H#N# virus mutated 46 Guillain Barré 46 encephalitis meningitis 46 necrotizing fasciitis 46 legionnaires disease outbreak 46 asthma flare ups 46 invasive pneumococcal disease 46 recurrent wheezing 46 gastrointestinal infections 46 staph superbug 46 neuroinvasive disease 46 strep infection 46 mosquito borne 46 influenzalike illness 46 interstitial lung disease 46 Acute diarrhea 46 Hendra virus 46 Legionellosis 46 Whooping cough pertussis 46 bloody diarrhea 46 coryza 46 Pertussis whooping cough 46 Bloodstream infections 46 MRSA bacteria 46 novel H#N# influenza 46 hanta virus 46 deadly H#N# virus 46 Rheumatic fever 46 Cryptococcus gattii 46 antibiotic resistant staph infection 46 acute hepatitis 46 bacterial respiratory infections 46 streptococcal disease 46 acute viral infection 46 dengue fever mosquito borne 46 conjunctivitis pink 46 WNV infections 46 Leptospirosis 46 fine particulate pollution 46 pandemic H#N# influenza 46 H#N# swine flu 46 de aths 46 MDR tuberculosis 46 acute pancreatitis 46 chronic cough 46 equine piroplasmosis 46 Crimean Congo Hemorrhagic Fever 46 viral infections 46 communicable illnesses 46 dengue 46 S. aureus infections 46 neisseria meningitidis 46 herpes infection 46 leaky thatch hut 46 swine flue 46 infectious mononucleosis 46 septicemic 46 Legionella bacterium 46 asthma allergies 46 Ashlie Pipkin died 46 intestinal obstructions 46 Shigella infections 46 nosocomial infection 46 fevers sore throats 46 encephalitis swelling 46 trichinosis 46 hepatitis B infection 46 staphylococcus bacteria 46 mold spores 46 LaCrosse encephalitis 46 persistent fever cough 46 hendra virus 46 bronchial infection 46 histoplasmosis 46 viral bacterial 46 Hib meningitis 46 tickborne diseases 46 antibiotic resistant strain 46 acute flaccid paralysis 46 staph infection 46 enterovirus 46 communicable disease 46 laryngitis 46 Meningococcemia 46 super spreaders 46 pulmonary embolisms 46 Hepatitis E 46 H1 N1 flu 46 severe asthma exacerbations 46 Deep Vein Thrombosis DVT 46 poisoning 46 coughing 46 invasive MRSA infections 46 intestinal illness 46 asthmatic reactions 46 diarrohea 46 lepto 46 scarlet fever 46 H#N# influenza strain 46 prolonged exertion 46 clostridium 46 chlamydia infection 46 variant CJD 46 fever cough 46 wheezing cough 46 E. coli STEC 46 ricin poisoning 46 eastern equine encephalitis 46 aureus MRSA 46 corona virus 46 Flu 46 meningococcal bacteria 46 Mouth Disease HFMD 46 aureus infections 46 salmonella infections 46 Shigella infection 46 pericardial mesothelioma 46 atopy 45 irritated sinuses 45 dengue haemorrhagic fever DHF 45 fever swollen glands 45 mosquito transmitted 45 hyper virulent strain 45 fever headache fatigue 45 legionella 45 nosocomial infections 45 SARS virus 45 pertussis whooping cough 45 peritoneal mesothelioma 45 asthmas 45 haemorrhagic 45 methicillin resistant staph 45 C. difficile colitis 45 dengue epidemics 45 bacteria Neisseria meningitidis 45 Pertussis 45 Sars virus 45 resistant staph infections 45 coccidia 45 mycoplasma pneumoniae 45 Shigella bacteria 45 pneumonia septicemia 45 Intestinal parasites 45 meningo 45 Particle pollution 45 Salmonella Saintpaul strain 45 debilitating neurological disease 45 pandemic H#N# virus 45 uncontrolled asthma 45 sore throat cough 45 bacterial infections 45 deep vein thrombosis 45 fever vomiting 45 staphylococcal infections 45 unwellness 45 rotavirus gastroenteritis 45 atypical pneumonia outbreak 45 rheumatic fever 45 DVT 45 Lemierre syndrome 45 Acute respiratory distress 45 fever 45 EHV 1 45 eating Veggie Booty 45 agranulocytosis 45 Tourette syndrome neurological disorder 45 suspected norovirus outbreak 45 Canine Parvovirus 45 convulsions coma 45 glandular fever 45 Staphylococcus aureus infections 45 viral respiratory infections 45 CCHF virus 45 pneumococcal strains 45 scald burns 45 dermopathy 45 polymyositis 45 carbon monoxide poisoning 45 Enterovirus 45 fume inhalation 45 asbestos exposure 45 CDAD 45 Bacterial infections 45 Hantavirus Pulmonary Syndrome 45 superbug clostridium difficile 45 Pre eclampsia 45 mercury poisoning 45 anaphylactic reactions 45 highly pathogenic H#N# virus 45 hemolytic uremic syndrome 45 runny noses sore throats 45 asthma emphysema 45 influenza virus 45 chronic bronchitis 45 Strep infections 45 heat exhaustion 45 pulmonary embolism blood clots 45 pollutant ozone 45 Acute pancreatitis 45 rotovirus 45 asthma exacerbation 45 Buruli ulcer 45 salmonella serotype 45 Swine flu 45 giardia 45 spontaneous pneumothorax 45 Peanut allergy 45 CDC Swine flu 45 inhaling asbestos fibers 45 high fevers coughing 45 infected fowl 45 SWINE flu 45 meningococcus bacteria 45 Staph infections 45 food induced anaphylaxis 45 wheezing 45 fevers coughs 45 Creutzfeldt Jakob 45 West Nile neuroinvasive 45 Devic disease 45 Communicable diseases 45 kidney failure 45 asymptomatic 45 gastrointestinal symptoms 45 Norwalk Virus 45 skin rash 45 contagious respiratory 45 Tom Safranek 45 CMV infection 45 typhus fever 45 pollen allergies 45 opportunistic pathogens 45 pinkeye 45 bacillary dysentery 45 HIN1 45 porcine reproductive 45 rotavirus infection 45 avian flu 45 pseudomonas bacteria 45 Influenza A/H#N# 45 oral thrush 45 otitis media ear 45 neurological disorder 45 rhinosinusitis 45 gastroenteritis outbreak 45 highly pathogenic H#N# 45 antifreeze poisoning 45 aggravates asthma 45 contracting bacterial meningitis 45 WNv 45 hypervirulent strain 45 inhaled irritants 45 amoeba Naegleria fowleri 45 itchy eyes 45 legionnaires outbreak 45 virulent H#N# 45 neonatal herpes 45 cadmium poisoning 45 anthrax inhalation 45 organophosphate poisoning 45 avian botulism 45 zoonotic diseases 45 Cryptococcus neoformans 45 noroviruses 45 Salmonella poisoning 45 Rotavirus infections 45 chlamydial infections 45 cryptosporidium parasite 45 glanders 45 Swine influenza 45 human metapneumovirus 45 diarrhea stomach cramps 45 RSV 45 CCHF 45 chronic fatigue syndrome 45 Fenstersheib 45 Seasonal flu 45 MRSA Methicillin 45 dental abscess 45 Heartworm disease 45 asthma triggers 45 causes bloody diarrhea 45 influenza AH#N# 45 staph infections 45 formaldehyde carcinogen 45 EHEC infections 45 foodborne botulism 45 Diarrheal diseases 45 mosquito transmitted diseases 45 fever sore throat 45 acute myocarditis 45 tremolite asbestos 45 Pericarditis 45 bacteria streptococcus suis 45 asthmatics 45 Canine influenza 45 allergic reactions 45 asthama 45 enteroviruses 45 infectious diseases 45 coccidioidomycosis 45 staph 45 Pandemic H#N# 45 CA MRSA 45 Ventilator associated 45 communicable disease control 45 superbug infections 45 Neisseria meningitis 45 influenza viruses circulating 45 Sulianti Saroso hospital 45 bacterium Staphylococcus aureus 45 waterborne epidemics 45 gastro bug 44 acute otitis media 44 fever headache tiredness 44 mosquito borne diseases 44 tick transmitted diseases 44 chikunguniya 44 digestive ailment 44 bird flu 44 painful sores 44 atopic disorders 44 norovirus gastroenteritis 44 hacking cough 44 tick borne diseases 44 hay fever asthma 44 Behcet Syndrome 44 airborne asbestos fibers 44 hemolytic anemia 44 mesothelioma asbestosis 44 herpes encephalitis 44 Guillian Barre Syndrome 44 Stomach flu 44 dermatitis eczema 44 cervical cancer genital warts 44 H5NI virus 44 hyperemesis gravidarum 44 chronic hepatitis 44 microvascular angina 44 Sporadic CJD 44 Vector borne diseases 44 gastritis ulcers 44 Creutzfeldt Jakob Disease 44 invasive Hib 44 Highly contagious 44 vomiting diarrhea nausea 44 Latent TB 44 asthma sufferers 44 Tuberculosis 44 fever diarrhea vomiting 44 sinus congestion 44 gastro intestinal illnesses 44 vasovagal syncope 44 frostbite hypothermia 44 bacteremic pneumonia 44 Chlamydia infections 44 canine influenza 44 fever headache sore throat 44 Campylobacter infections 44 infant botulism 44 waterborne infectious diseases 44 Mononucleosis 44 rotavirus 44 noncontagious 44 AAT deficiency 44 Swine flue 44 mycoplasma pneumonia 44 Equine Herpes Virus 44 haemorrhagic fevers 44 avian influenza H#N# 44 Clostridium difficile infections 44 Noroviruses 44 pharyngeal cancer 44 Hantavirus pulmonary syndrome 44 Toxoplasmosis 44 abnormal vaginal bleeding 44 Hip fractures 44 exertional rhabdomyolysis 44 causative pathogens 44 antibiotic resistant staph infections 44 respiratory syncytial virus 44 pasteurella 44 airborne fungus 44 leptospirosis bacterial infection 44 respiratory irritation 44 sarcoidosis 44 Traveler diarrhea 44 infectious bacterial 44 eosinophilic pneumonia 44 invasive pneumococcal diseases 44 respiratory tract infections 44 cloven footed animals 44 pandemic influenza A/H#N# 44 pulmonary fibrosis 44 disease CJD 44 Guillain Barre Syndrome 44 contagious viral 44 midge borne 44 incurable lung 44 Guillain Barre Syndrome GBS 44 Equine Herpes Virus EHV 44 tuberculous 44 nasal congestion runny nose 44 staphylococcus aureus 44 dengue epidemic 44 cholera 44 C. difficile bacteria 44 neurologic symptoms 44 LeBailly 44 eye irritation 44 adder bite 44 Dr. Barbara Yaffe 44 lungworm 44 pneumococcus bacterium 44 chronic beryllium 44 Vibrio vulnificus 44 asbestos contamination