Click on the image or the + sign to view larger image		Foot-and-mouth virus Insight into a devastating virus: the scattering of X-rays when passed through a crystal of the foot-and-mouth virus creates a pattern on a photographic plate that can be analyzed by a computer to produce this colourful representation of the virus’s three-dimensional structure. Such studies reveal structures at a resolution of 2.9 Angströms (1 Angström = one ten-millionth of a millimetre). Credit: Ravindra Acharya, Elizabeth Fry, David Stuart, Graham Fox, David Rowlands and Fred Brown