re: No Test for Delta & WH Tells Reporter Cases Surging because Scientists Said So

Many labs are participating in studies and send a certain number positives from the general test for gene sequencing. Gene sequencing is done at labs such as CDC, state labs, university research labs, etc. The results of this indicate how much of the different variants are in the general population at any given time. I hear doctors and hospital infection control departments can request sequencing as well.