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Health

Growth of African HIV epidemic slows

But only eastern Africa has seen an actual decline, and new estimates put the cost of the WHO's anti-retroviral drug plan at over $5 billion

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Environment

Sneakiest primates have biggest brains

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Health

Second US cow tests positive for BSE

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Environment

Languorous lemur hibernates through tropical winter

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Environment

Leaping lemurs

Books & Arts

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Health

No BSE-free cow

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Health

Cows immune to BSE near reality

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Health

Friendly mouth bacteria could block HIV

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Health

Tonsil tests suggest thousands harbour vCJD

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Health

US accelerates HIV drug approval

Approval of medicines eligible for the US's multi-billion-dollar global AIDS initiative could be cut from four years to six weeks

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Health

Gene therapy fights HIV in human tests

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Health

Single test reveals how fast HIV is spreading

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Health

'Chemical condom' tantalisingly close

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Health

Mysterious BSE-like disease found in sheep

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