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Melting curves observed for Poulvac IB QX, IBV-D388, Nobilis IB H120 and IBV M41 GD when tested using the multiplex approach for IBV genotyping (A). Melting temperatures among six independent runs (B). Each point represent the mean of nine replicates, branches represent standard deviation (SD) (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article).
