Scientists still do not know much about the SARS virus.

Now scientists are asking if the SARS virus has an animal host.

Infection with the SARS virus has not been documented among other suspect cases in this country.

According to him, this combination cannot be formed in the natural world and thus the SARS virus must have been produced under laboratory conditions.

The student did not know he had been exposed to the SARS virus.

Another avenue of research has focused on finding the SARS virus in nature.

In 2003, the entire school was quarantined and closed due to a case of the SARS virus.

Of these, 66, or 13 percent, had antibodies to the SARS virus.

But some patients also showed antibodies to the SARS virus in their blood samples.

He then goes mad and infects himself with the SARS virus.