ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY
Severe acute respiratory syndrome (SARS). Conceptual image of the letters of SARS and images (yellow) of coronaviruses on a chest X-ray. This represents the SARS virus infecting a patient's lungs. The coronavirus images are coloured TEMs (transmission electron micrographs). SARS is a disease first recorded in China in late 2002. Its symptoms include fever, coughing and headaches. It is thought to be spread through the air and by touching surfaces contaminated by water droplets from coughing. Death is usually from respiratory failure, with a mortality rate of around 10%. It is caused by a coronavirus, other types of which cause common colds and forms of gastroenteritis.
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