Light, photosynthesis help bacteria invade fresh produce

Exposure to light and possibly photosynthesis itself could be helping disease-causing bacteria to be internalized by lettuce leaves, making them impervious to washing, according to research published in the October issue ...

Water should be a human right

In this months PLoS Medicine Editorial, the editors argue that -- despite recent international objections -- access to clean water should be recognised as a human right.

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