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China bird flu death toll rises to 22
Authorities said many of those who became sick worked with poultry.
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Walking linked to less strokes in women
Women who walk at least three hours every week are less likely to suffer a stroke.
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Change tobacco branding - EU
The European Union believes cigarette packs should reflect the deadly threat posed by smoking.
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Guinea demands cholera vaccine
Residents of Guinea capital, Conakry clamour to be vaccinated.
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Lowering child mortality rates
UNICEF wants to drop the amount of child deaths caused by hunger across the world.