From the American Lung Association:
Regular COVID-19 tests do not detect which variant is involved in a patient’s case—that information does not change the approach to care or therapy. The variant identification requires genomic sequencing, a process separate from regular virus tests and one that not all labs are able to do or do not do on a routine basis for patient care but are done more for public health monitoring.
https://www.lung.org/blog/covid-19-delta-variant
So then why are all the “experts” saying all these news cases are delta?