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Viral RNA in exosomes from culture supernatants of cell lines.
| Exo samples | S gene | N gene | ATCB |
|---|---|---|---|
| SARS-COV-2 | 16.2 | – | 21.4 |
| SARS-COV-2 alpha | 19.2 | – | 21.9 |
| A549 N&S | 22.8 | 23.9 | 35.3 |
| pos ctrla | 16.5 | 31.7 | 21.0 |
aPositive control (pos ctrl) RNA provided by the manufacture; –, not detected by qPCR; ATCB, human β-actin gene.
