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SARS immunity

BEIJING: Chinese researchers have found that a robust antibody against the Severe Acute Respiratory Syndrome (SARS) coronavirus remained in the bodies of recovered SARS patients for more than three years. ``The discovery will help in the research of a SARS vaccine and help find the best therapy if SARS returns,'' said Li Taisheng, head of the research group, told Xinhua on Friday. Although the antibody declined moderately as time passed, it remained at a high level in the body for more than three years after the patients recovered, Mr. Li said. ``We presume that recovered SARS patients could have long-term immunity from the disease,'' Mr. Li said. He said the neutralising antibody was the most protective of all antibodies in preventing the SARS coronavirus from invading healthy cells. — Xinhua

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