In the original article, there was an error. The individual who generated artwork for Figure 1, was not duly acknowledged.
A correction has been made to the Acknowledgements section.
“The authors kindly thank Mr. Hans Kek for generating the artwork for Figure 1. We gratefully acknowledge the contribution to this work of the Victorian Operational Infrastructure Support Program received by the Burnet Institute.”
The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.