Tip of the iceberg shows.
D001210:Asia, Southeastern; D002771:Cholera / Q000453:epidemiology* / Q000517:prevention & control*; D022121:Cholera Vaccines; D004196:Disease Outbreaks; D006801:Humans; D007194:India; D010154:Pakistan; D014586:USSR; D014944:World Health Organization
D022121:Cholera Vaccines