However, the case is not completely closed. We rarely get a smoking gun, said Stephen Morse, a disease researcher at Columbia University. Democratic Senator Mark Warner, the committee's chairman, said he was 'dismayed' there had been no hearing last year. But that does not in itself signal that something in particular is being hidden. In the case of Severe Acute Respiratory Syndrome (SARS)  a disease caused by a beta coronavirus, like the current coronavirus  researchers first identified the virus in February 2003.
the case is not completely close. We rarely get a smoking gun, said Stephen Morgannobollard of the committee.
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the case is not completely close . We rarely get a smoking gun , said Stephen Morgannobollard of the committee .
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