Just an uneducated guess..
Is the difficulty with identifying the cause due to the virus(?) still going through a mutational change?
We know the common cold and flu viruses are constantly going through changes, and that is why they are so hard to cure.
Is this possibly the new strategem for this virus as well?
To be honest we do not know.
Two labs have found different bugs in the lungs of victims
Problem is these are both variations of very common viruses found in most people.
Are these findings pointing to the real cause of SARS, or are they just Artifacts?
No one is sure