THEY ARE SEQUENCING THE GENOME OF BARRET VIRUS ATTACK to determine which strain was used in this attack.
I don't have sauce it is just logical with that many infected at the same time - the virus was released at event not spread; and the next step is to find out which version of SARS COV 2 it is. This will also show that it was not a spread action but a 'release at the event and it will define it as an act of treason.
by sequencing the genome of the virus the WH and senators contracted from the Barrett event they will find it is the original Wuhan strain of the corona virus.