Images Dated 9th August 2002

Thermogram of feet

Thermogram of feet. Thermograms show the emission of infrared radiation, displaying it as colour- coded surface temperatures. The range shown is from 23 degrees Celsius (purple), through blue, green and yellow, up to 35 degrees Celsius (red). The series of images progress, over time, from left to right. The feet are on a steel floor. The cooling effect of the metal dissipates the feet's warmth, eventually leaving them cold (purple)

© DR. ARTHUR TUCKER/SCIENCE PHOTO LIBRARY

Coloured TEM of a rubella (German measles) virus

Rubella virus. Coloured transmission electron micrograph (TEM) of a single rubella virus, the causative agent of German measles. It consists of a lipoprotein coat or capsid (yellow) and a core containing single-stranded genetic RNA material (pink). The virus diameter is about 60 nanometres. Rubella belongs to the togavirus group of viruses. German measles is spread in airborne droplets, and occurs commonly in children as a mild rash. Rubella is a risk to unborn babies if the mother contracts the disease in the first four months of pregnancy. Rubella vaccine is now routinely given to young babies, which provides lasting immunity. Magnification: x324'000 at 6x6cm size. x250, 000 at 4.5x4.5cm original size

© PASIEKA/SCIENCE PHOTO LIBRARY

Helicobacter pylori bacteria in stomach

Helicobacter pylori bacteria. Colouredscanning electron micrograph (SEM) of Helicobacter pylori bacteria (pink), a causeof gastritis (stomach lining inflammation). TheseGram- negative, rod- shaped, bacteria are commonlyfound in the mucosal lining of the stomach inmiddle-aged people. Their presence is alsoassociated with the formation of ulcers in theduodenum (part of the small intestine).Magnification: x3100 at 6x7cm size

© David Mccarthy/Science Photo Library