title: Serious unexplained illness among drug injectors.
mesh_terms: D000328:Adult; D001424:Bacterial Infections / Q000150:complications / Q000453:epidemiology*; D004196:Disease Outbreaks; D005260:Female; D006801:Humans; D007494:Ireland / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D011159:Population Surveillance; D015819:Substance Abuse, Intravenous / Q000453:epidemiology*; D006113:United Kingdom / Q000453:epidemiology