Health

Coke has promised less sugar, but less is still too much

At last count, 28 countries and seven large cities in the USA had moved to introduce a tax on sugary drinks. Potential benefits are clear and include reducing costs from obesity and health-care spending, as well as the potential ...

HIV & AIDS

A 'public' target for HIV

Individuals produce unique sets of antibodies in response to HIV infection. That diversity—and the ability of the human immunodeficiency virus to rapidly change its protein coat to avoid detection—has stymied efforts ...

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