A STUDY finds what many of us suspected: #COVID19 antigen tests are less accurate than they used to be.
“The overall sensitivity of the ADT decreased from 63% in the Delta period to 33% in the Omicron period. This decrease was highly statistically significant (p < 0.001), and no decrease in viral load was detected at the RNA level. The nasal site presented a significantly higher viral load than the oral site during the Omicron wave.”
Edited 116d ago