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Table 1 Enrichment of nanobodies against NDV-NP protein from the phages during three rounds of panning

From: Nanobody-horseradish peroxidase fusion protein as an ultrasensitive probe to detect antibodies against Newcastle disease virus in the immunoassay

Round of panning

Phage input (PFU/well)

Phage output (PFU/well)

Recovery rate

Enrichment

1st round

5 × 1010

7 × 103

1.4 × 10−7

7

2nd round

5 × 1010

1.17 × 107

2.34 × 10−4

4.5 × 101

3rd round

5 × 1010

1.14 × 107

5 × 10−4

2.19 × 103