Crowded places like the Olympics breeding grounds for disease
Thousands of people from all over the world are descending on the already crowded city of London during the Olympic Games (July 27-Aug. 12). As even more people squeeze themselves...
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Briefs: New Scientist
LIGHTING CANCER SPEEDS DIAGNOSIS Infrared light can help spot cancerous tissue in an instant. To look for cancer in a biopsy, the sample is stained to highlight DNA and a...