Related by context. Frequent words. (Click for all words.) 66 urinary tract infection 58 lung infection 57 pneumonia 57 bacterial infection 56 septic shock 54 infection 54 severe diarrhea 53 respiratory infection 52 breathing difficulties 52 bed sores 51 viral infection 51 severe abdominal pain 51 abdominal pains 51 bedsores 50 bacterial pneumonia 50 septicemia 50 kidney failure 50 chicken pox 50 chickenpox 49 internal bleeding 49 staph infection 49 gastroenteritis 49 jaundice 49 viral fever 49 stomach ache 48 diarrhea 48 ulcers 48 meningitis 48 allergic reaction 48 stomach cramps 48 backache 48 fungal infection 47 typhoid fever 47 fluid retention 47 tonsillitis 47 abscess 47 encephalitis 47 infections 47 ulcer 47 sepsis 47 sores 47 MRSA infection 46 stomach ulcers 46 pancreatitis 46 renal failure 46 bacterial meningitis 46 ear infection 46 sore throat 45 partial paralysis 45 acute renal failure 45 gallstones 45 rheumatic fever 45 typhoid 45 gangrene 45 difficulty breathing 45 vomiting 45 ailment 44 strep 44 bloody diarrhea 44 hypothyroidism 44 viral meningitis 44 organ failure 44 feeling unwell 44 bronchitis 44 anemia 44 rickets 44 abdominal pain 44 Pneumonia 44 fungal infections 44 urinary tract 44 sinus infection 44 fevers 44 acute diarrhea 44 urinary tract infections 44 abscesses 44 respiratory illness 44 blood clot 44 severe allergic reaction 44 heart arrhythmia 44 illness 43 fluid buildup 43 mosquito bite 43 stomach pains 43 platelet count 43 dehydration 43 fever 43 kidney stones 43 fainting 43 strep throat 43 hydrocephalus 43 irregular heartbeat 43 HUS 43 muscle cramps 42 eczema 42 ectopic pregnancy 42 appendicitis 42 glandular fever 42 blood sugar 42 respiratory distress 42 stomach bug 42 sinusitis