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Medicines to treat common diseases in poorer countries tend to be old and are often ineffective. But the pharmaceutical industry has little incentive to research new drugs:…
Unless Brazil enforces existing conservation laws, it will lose more than 40% of its Amazon rainforest by 2050, say scientists. The predictions are among the first to emerge from…
Heterosexual men who are circumcised are less likely to contract HIV/Aids from their female partners, according to ground-breaking South African research. In 2002, the scientists…
