Weather imperfect

People from some overseas countries are up to four times more likely to develop tuberculosis (TB) in the UK than they would in the country they came from, says a recent research. The researchers believe that the move away from a sunny climate to cloudy and grey skies of the UK is to blame. They say the lack of sunshine results in vitamin D deficiency, which reduces the ability of the body's immune system to keep TB at bay. The research, which was based on Somalian and Gujrati Indian migrants, has found a deficiency of vitamin D in both communities as well as high incidence of TB.

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