1 Cork University Hospital, Irish Centre for Maternal and Child Health Research (INFANT), HRB Clinical Research Facility Cork, Cork, Ireland.
2 APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Dermatology, University of Cape Town, South Africa.
3 Asthma UK Centre for Applied Research, Usher Institute, University of Edinburgh, Edinburgh, United Kingdom.
4 APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Medicine, University College Cork, Cork, Ireland; School of Microbiology, University College Cork, Cork, Ireland. Electronic address: liam.omahony@ucc.ie.