Covid tests3 Aug 2021 13:13
So apparently FDA says laboratories in USA to change their testing protocols and screen for both covid and influenza as the PCR test can't differentiate between them both
https://www.cdc.gov/csels/dls/locs/2021/07-21-2021-lab-alert-Changes_CDC_RT-PCR_SARS-CoV-2_Testing_1.html