Related by context. Frequent words. (Click for all words.) 72 lung diseases 71 respiratory illnesses 69 respiratory infections 65 respiratory 64 respiratory ailments 60 infectious diseases 60 respiratory disorders 60 chronic respiratory 59 cardiovascular diseases 58 diseases 58 lung infections 57 respiratory illness 57 acute respiratory infections 57 asthma 55 lung disease 55 chronic diseases 54 pulmonary disease 53 viral infections 53 diarrheal diseases 53 disease COPD 52 bacterial infections 52 allergic diseases 51 respiratory tract infections 51 chronic lung 51 viral diseases 51 inflammatory diseases 51 upper respiratory infections 51 infections 51 chronic illnesses 50 diarrheal disease 50 pneumonia 50 communicable diseases 50 respiratory symptoms 50 infectious disease 50 illnesses 49 respiratory tract 49 neurological disorders 49 tropical diseases 49 ailments 49 inhalation 48 COPD 48 fungal infections 48 respiratory syncytial virus RSV 47 cancers 47 chronic bronchitis 47 vascular diseases 47 tuberculosis 47 water borne diseases 47 air pollution 47 diarrhea 47 pulmonary 46 metabolic disorders 46 cardiovascular disorders 46 chronic ailments 46 waterborne diseases 46 gastrointestinal disorders 46 asthmatics 46 metabolic diseases 46 cardiovascular disease 46 sinus infections 46 asthma sufferers 46 respiratory viruses 46 gastrointestinal diseases 46 breathing difficulties 45 bronchitis 45 disease 45 sepsis 44 allergic rhinitis 44 autoimmune diseases 44 emphysema 44 borne diseases 44 chronic obstructive pulmonary 44 influenza 44 hypertension 44 chronic cough 44 non communicable diseases 44 Tuberculosis 44 sinusitis 44 liver disease 44 throat irritation 44 preventable diseases 44 neurological diseases 44 hospitalizations 43 renal disease 43 skin rashes 43 cerebrovascular disease 43 autoimmune disorders 43 leptospirosis 43 pneumococcal disease 43 acute respiratory 43 tuberculosis TB 43 rhinitis 43 gastroenteritis 43 sicknesses 43 bacterial pneumonia 43 vascular disease 43 vector borne diseases 43 bloodstream infections 43 heart disease 43 allergic asthma 42 fevers