Outbreaks of disease.
D003141:Communicable Diseases / Q000453:epidemiology; D003933:Diagnosis; D004196:Disease Outbreaks / Q000453:epidemiology; D064420:Drug-Related Side Effects and Adverse Reactions; D004785:Environmental Pollutants / Q000009:adverse effects; D006801:Humans; D011041:Poisoning / Q000453:epidemiology; D011153:Population; D012306:Risk
D004785:Environmental Pollutants