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Secrets of New SARS-Like Virus Uncovered
Date:3/13/2013

By Barbara Bronson Gray
HealthDay Reporter

WEDNESDAY, March 13 (HealthDay News) -- A discovery that shows how a novel -- and often fatal -- virus infects cells may help fight a health threat that has recently emerged on the world stage, researchers report.

A unique coronavirus was identified as the cause of severe respiratory illness in 14 people from Jordan, Qatar, Saudi Arabia and the United Kingdom between April 2012 and February 2013, according to the U.S. Centers for Disease Control and Prevention. Eight people have died after contracting the virus.

Coronaviruses -- named for their crown-like projections visible under a microscope -- are causes of the common cold but also are associated with more severe illness, such as SARS (Severe Acute Respiratory Syndrome), which killed hundreds of people worldwide in 2003.

Although no deaths have been reported in the United States, the fact that there were clusters of people infected in the United Kingdom shows the new virus can be transmitted between humans, according to the CDC.

Now there's a possible clue on how to stop the virus, which was first identified last September. Dutch researchers said they've identified the receptor that is used by the coronavirus to invade cells.

Approaches to preventing the virus from binding to the receptor and gaining entry to cells may help combat infection, said study author Bart Haagmans, a virologist at the Erasmus Medical Center, in Rotterdam. "These findings provide further insight into how the virus causes severe pneumonia, as the receptor is present in the lower respiratory tract [trachea, airways or lungs]," he explained.

The research was published in the March 14 issue of the journal Nature.

The severity of the disease appears to vary, mirroring minor flu-like infections in some people and becoming life-threatening in others. Those with the most serious infections seem to have had oth
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