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medpundit |
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Tuesday, March 25, 2003While more research is needed, the evidence that a coronavirus is involved comes from several sources, U.S. officials said. Scientists have been able to grow coronavirus from tissue from two patients. In at least one sample, scientists using a powerful microscope have seen the distinctive crown-like shape of a coronavirus. In addition, scientists have found evidence of a coronavirus in lung and kidney tissue from patients, as well as antibodies to coronaviruses in the blood of three patients. A procedure known as polymerase chain reaction has also isolated some genetic material. A preliminary analysis indicates it may represent a fourth, previously unknown, type of coronavirus. "We're getting information in from a variety of different kinds of testing, all of which are pointing us in this direction," Gerberding said. "This, in scientific terms, is very strong evidence." Before, the speculation was that it was a paramyxovirus, also a virus that causes cold symptoms. Now, evidence is pointing toward the family that most commonly causes colds, the coronavirus, which takes it name from its resemblance to the corona of the sun. Sad to see that the infections continue to spread to close contacts, despite admirable efforts to quarantine people with the symptoms. But, then that's the way with coronaviruses. They spread quickly and easily. Things may have been much worse if not for the efforts of the WHO and its regional counterparts. posted by Sydney on 3/25/2003 07:36:00 AM 0 comments 0 Comments: |
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