The south island of NZ where I live has not had varroa yet. I didnt know Aus didnt have them.
It is just a matter of time though. Everyone here is frightened and we have had a few scares, these have been finally explained by contaminated varroa tests. Movement of bee equipment between the islands is very controlled here.
I have been eagerly reading about the small cells, wondering whether I can convert my bees in time for the arrival of varroa.