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Latest SARS evidence

SARS almost certainly caused by new type of coronavirus — diagnostic tests being prepared.

By Robert Walgate, April 4, 2003

The outbreak of SARS (Severe Acute Respiratory Syndrome) that originated in China is, with “95–97% certainty,” caused by a completely new type of coronavirus, according to Julie Hall, who is responsible for the World Health Organization’s Global Alert, Response and Operations Network.

The new virus diverges by 50–60% from the three known groups of coronavirus, but that is typical of the variation between coronavirus groups, according to Stephan Günther of the Bernhard Nocht Institute of Tropical Medicine in Hamburg. Günther works with Christian Drosten, who along with researchers in several other laboratories has identified the coronavirus in SARS patients. The Scientist asked Günther if it could be a previously unknown animal virus. “The origin is completely unclear because no other coronavirus is closely related,” he said.

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