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Bias value plot for VZV-DEN09 DNA. The bias value, an index of enrichment efficiency, was determined for each nucleotide of VZV-DEN09. Bias values of <0 indicate less-than-expected enrichment, while a bias value of >0 indicates more-than-expected enrichment. A single region of VZV-DEN09 DNA that was deleted from VZV32 was outside a 2-fold deviation (blue lines) from the average (red line).
