Related by context. Frequent words. (Click for all words.) 71 bacterial infection 68 bronchitis 66 mononucleosis 63 pneumonia 63 infection 63 gastroenteritis 62 ailment 62 strep throat 62 chicken pox 62 illness 61 inflammation 60 respiratory illness 59 sore throat 59 viral infections 58 flulike symptoms 58 bacterial meningitis 57 encephalitis 57 virus 55 staph infection 55 flu virus 55 appendicitis 54 soreness 54 flu 54 rib injury 54 spasms 54 tendinitis 53 mumps 53 hamstring injury 53 groin strain 53 calf strain 52 groin injury 52 mild concussion 52 influenza 52 thigh injury 52 hamstring strain 52 sore shoulder 52 bacterial infections 52 meningitis 51 strained hamstring 51 calf injury 51 knee injury 51 sprained ankle 50 strained groin 50 abdominal strain 50 H#N# virus 50 irregular heartbeat 50 blood clot 50 norovirus 50 stiff neck 50 stress fracture 49 infections 49 ankle injury 49 disease 49 cyst 48 jaundice 48 bacterium 48 cramps 48 injury 48 Achilles injury 48 leukemia 48 intestinal 48 parasite 48 symptoms 47 strained muscle 47 knee sprain 47 ankle sprain 47 inner ear 47 Infection 47 dislocated shoulder 47 torn ligament 47 hepatitis 47 sore hamstring 46 plantar fasciitis 46 influenza virus 46 concussion 46 thigh strain 46 breathing difficulties 46 dengue fever 46 allergic reaction 46 sports hernia 46 bacteria 45 sprain 45 lymphoma 45 bone bruise 45 fevers 45 dehydration 45 highly contagious 45 malady 45 diarrhea 45 broken rib 45 vertigo 45 sepsis 45 colds 45 measles 45 ailments 45 calf muscle 45 flu viruses 45 bacterial 45 turf toe 44 autoimmune disease 44 respiratory infections