Related by context. Frequent words. (Click for all words.) 72 bacterial meningitis 65 bacterial infection 64 mumps 64 meningitis 62 staph infection 62 whooping cough 61 viral infection 60 chicken pox 60 pneumonia 60 gastroenteritis 60 strep throat 60 flu 59 encephalitis 59 respiratory illness 58 illness 58 swine flu 58 pertussis 57 H#N# virus 57 norovirus 57 influenza 56 H#N# 56 mononucleosis 56 H#N# influenza 55 H#N# flu 55 infection 54 flulike symptoms 54 bronchitis 54 Lyme disease 54 highly contagious 53 flu virus 53 MRSA 53 measles 52 West Nile virus 52 West Nile Virus 52 sore throat 52 Flu 51 Swine Flu 51 virus 51 appendicitis 51 H#N# swine flu 50 dengue fever 50 ailment 49 seasonal flu 49 Swine flu 48 West Nile 48 Influenza 48 sprain 48 infections 47 superbug 47 illnesses 47 mild concussion 47 Hepatitis 47 H#N# strain 47 rabies 47 diarrhea 47 hepatitis 47 viral infections 46 dengue 46 symptoms 46 E. coli 46 swine flu virus 46 avian influenza 46 leukemia 46 tuberculosis 45 typhoid 45 ankle sprain 45 disease 45 colds 45 concussion 44 flu viruses 44 avian flu 44 salmonella 44 bacterial infections 44 bone bruise 44 diagnosed 44 knee sprain 44 sprained ankle 44 fevers 44 jaundice 43 ligament damage 43 bird flu virus 43 Rabies 43 cholera 43 bird flu 43 liver disease 43 dislocated shoulder 43 RSV 43 EEE 43 TB 43 irregular heartbeat 43 heat exhaustion 43 rib injury 43 hospitalized 43 pulmonary embolism 43 Salmonella 42 influenza virus 42 outbreak 42 borne illness 42 stress fracture 42 allergic reaction 42 respiratory infections