The second wave is upon us, but even official advice about the 2009 H1N1 pandemic is sometimes wrong. New Scientist sorts fact from fantasy.

The flu virus mutates so rapidly that our immune systems can't keep up. But experimental vaccines could change all that

Statistics from the US indicating a link between swine flu deaths and obesity point to potential new ways to fend off the virus.

Preserving the world's many species has an unexpected benefit, say researchers

The vaccine industry is waiting for a WHO decision on whether to keep making regular flu vaccine, or whether to switch to vaccines for the current swine flu outbreak.

The flu outbreak may be winding down in Mexico and causing fewer deaths than feared, but health officials now fear that a more virulent version will return to kill millions.

There were signs that swine flu posed a human pandemic threat over a decade ago, yet no one paid any attention.

Indigenous peoples from as far apart as Lapland and Micronesia are meeting in Alaska to forge a common position on climate change.

The patent system that has served drug companies so well may at last be changing to also help those who need drugs most.

Potato are cheaper, more nutritious and easier to grow than grain. But turning to the spud does not come without risks.