Norovirus Micrograph (IMAGE)
Caption
Researchers at Washington University School of Medicine in St. Louis have identified the protein that norovirus -- shown here in a colored transmission electron micrograph -- uses to invade cells. Norovirus is the most common viral cause of diarrhea worldwide, but scientists still know little about how it infects people and causes disease because the virus grows poorly in the lab. The discovery, in mice, provides new ways to study a virus notoriously hard to work with and may lead to treatments or a vaccine.
Credit
CDC/Charles D. Humphrey
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