Relationship between variations of sunspot activity, climatic and environmental conditions and the incidence of some infectious diseases.
D000349:Africa; D001208:Asia; D002771:Cholera / Q000453:epidemiology; D002980:Climate; D004165:Diphtheria / Q000453:epidemiology; D004777:Environment; D005060:Europe; D005843:Geography; D006506:Hepatitis A / Q000453:epidemiology; D006801:Humans; D006814:Hungary; D007239:Infections / Q000453:epidemiology*; D007251:Influenza, Human / Q000453:epidemiology; D008288:Malaria / Q000453:epidemiology; D008581:Meningitis / Q000453:epidemiology; D008685:Meteorological Concepts; D010507:Periodicity; D012525:Saskatchewan; D012621:Seasons