This study found live, replication-capable virus in only 31% of PCR positives, with PCR-positive children half as likely as PCR-positive adults to have live virus.
Why are we still using poorly calibrated EUA tests???
cmaj.ca/content/early/…
Why are we still using poorly calibrated EUA tests???
cmaj.ca/content/early/…
This table show sensitivity and specificity for children by cycle threshold.
A cutoff of 23 would capture 97.2% of infectious positives.
The 35+ CT "positives" we include are less than 4% likely to be replication-capable.
A cutoff of 23 would capture 97.2% of infectious positives.
The 35+ CT "positives" we include are less than 4% likely to be replication-capable.
Same table for adults.
ICYMI, this study found just 19% of PCR "positives" in children under 10 have actual replication-capable virus. In children 11 to 17 it's just 23%. For adults 44%.
• • •
Missing some Tweet in this thread? You can try to
force a refresh
