ST. LOUIS -- Even as scientists were confirming that the West Nile virus had reached St. Louis, researchers here already have been trying to pinpoint why the mosquito-transmitted form of encephalitis ...

Researchers in the United States and Spain have discovered that an atomic force microscope -- a tool widely used in nanoscale imaging -- works differently in watery environments, a step toward better ...

Viruses are often termed “the invisible enemy”. They aren’t visible with the naked eye, or even by using a standard optical microscope. So how do we know they exist or what they look like? There are ...

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