“After December 31, 2021, the CDC will withdraw the emergency use authorization of the PCR test for COVID-19 testing. The CDC finally admitted the test does not differentiate between the flu and COVID virus.”
From the CDC website:
In preparation for this change, CDC recommends clinical laboratories and testing sites that have been using the CDC 2019-nCoV RT-PCR assay select and begin their transition to another FDA-authorized COVID-19 test. CDC encourages laboratories to consider adoption of a multiplexed method that can facilitate detection and differentiation of SARS-CoV-2 and influenza viruses. Such assays can facilitate continued testing for both influenza and SARS-CoV-2 and can save both time and resources as we head into influenza season.