Scientific Reports 6: Article number: 34114; published online: 29 September 2016; updated: 19 January 2017.

The original version of this Article omitted an affiliation for J. B. Garner. The correct affiliations are listed below:

Agriculture Victoria, Department of Economic Development, Jobs, Transport and Resources, 1301 Hazeldean Road, Ellinbank, Victoria 3821, Australia.

Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, 142 University Street, Parkville VIC 3053, Australia.

This has now been corrected in the HTML and PDF versions of this Article.