Anthrax is an acute infectious disease caused by the spore-forming bacterium Bacillus anthracis.

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Legionnaire's disease is an acute, respiratory bacterial infection that can be fatal.

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In countries such as Tanzania, where nearly 4, 500 women die annually from the disease, the problem is exacerbated by an acute shortage of medical experts and a lack of quality screening services, especially in rural areas.

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However, none of the six groupings - which included acute lymphoblastic leukaemia, brain tumours and Hodgkin's disease - showed an increasing trend between levels of radiation and rate of disease.

BBC: Radon cancer fears dismissed