3 ms·
Not all Covid PCR tests target the S-gene. The cheap RT-PCR test I took recently in London (for travel) targeted only the E-gene and ORF1ab sequences, so if it
by Reason077 5y ago
Not all Covid PCR tests target the S-gene. The cheap RT-PCR test I took recently in London (for travel) targeted only the E-gene and ORF1ab sequences, so if it had been positive it wouldn't have told me if it were Omicron or not.