Correction: Variations in T cell transcription factor sequence and expression associated with resistance to the sheep nematode Teladorsagia circumcincta.

There are three errors in the Abstract section of the manuscript, specifically lines 29–34. The correct text should be: Absolute RT-qPCR on 29 all 45 animals identified RORAv5 as being significantly differentially-expressed (p = 0.038) 30 between resistant, intermediate and susceptible groups; RORAv2 was not differentially31 expressed (p = 0.77). Spearman’s rank analysis showed that RORAv5 transcript copy number 32 was significantly negatively correlated with parameters of susceptibility, AWC and FEC; and 33 was positively correlated with BW. RORAv2 was not correlated with AWC, FEC or BW but 34 was significantly negatively correlated with IgA antibody levels.