Acknowledgements:
We thank Tanya Wyatt and Gary Gracie of SydPath Department of Anatomical Pathology, St Vincent’s Hospital, and David Croucher and Jordan Hastings for expert assistance with the Multiplex immunoassay. We are grateful to members of the Rhinology and Skull Base Group for their ongoing assistance. We thank the staff at the Ear Nose and Throat clinic who assisted during trial visits. This research received funding for mepolizumab treatment from GlaxoSmithKline.