"We need to get through the contact tracing operation and the testing and within the next couple of days we'll have a clear idea of whether this MIQ worker has indeed spread the virus in the community."
Plank said it was a timely reminder for people to keep up to date with locations of interest and scan in.
"It's a really good idea now to check that list of locations of interest and to make sure that you do scan in everywhere you go, and that you've got Bluetooth turned on.
"This is the best chance we have of stamping this Omicron outbreak out in its early stages before it really takes hold in the community."
While it was "good news we've caught it relatively early with a clear link to the border", Plank said the country still needed better vaccination and booster rates to contain a Covid-19 Omicron outbreak.