I honestly don’t know what this is even supposed to mean. Virus “not isolated”?? Usually in these situations there is some grain of truth being twisted or misunderstood in some way. Is semi saying that the virus doesn’t exist; it was a hoax just like the moon landing?
Pretty funny, huh?
It's almost certainly the most frequently sequenced virus in history and 2 seconds of searching finds databases with hundreds of thousands of gene sequences that have been done as well as the CDC's offer to send you an isolated virus sample if your lab qualifies.