Here's an analysis of cases and deaths, for Australia, then state-by-state.
I couldn't bear to post this last week as the case rate was one of the worst in the world (with WA at near-zero). That seems to have been the peak.
The death rate continues to increase.
New South Wales is the worst affected state, where the case rate rose to just under 4,000 per 100K population. If NSW was a country, that would've been the highest rate globally for any comparable country.
Victoria rose to a similar level, just slightly lower on this "per population" basis.
The rise in cases was even steeper than in NSW, so the impact of that on deaths is likely yet to come.
Queensland's chart is just breathtaking - rising from "COVID-zero" to among the highest case rates in the world in just a few weeks.
South Australia's peak for cases was somewhat lower than in the states shown above (but still breathtaking, following years of "COVID zero" life).
It is noticeable that the death rate there (relative to cases) seems much higher compared to other states.
In Western Australia, years of "COVID zero" life and economic success are under threat from a community Omicron outbreak.
Hopefully the NPI measures applied can limit the impact.
Tasmania's Omicron wave appears to have peaked - at about the same case rate as South Australia.
The Omicron peak in the Northern Territory was only slightly higher than SA & TAS (on a population basis).
In the Australian Capital Territory, the long, smouldering Delta outbreak has been absolutely swamped by Omicron. The peak in cases was a bit lower than that in NSW.
The Australian states each have fairly discrete outbreaks with quite different profiles.
Here's New South Wales, where NPIs were first dropped as BA.1 arrived, and multiple super-spreader events in mid-December. Together that paved the way for the total dominance at ~95%.
Here's the latest variant picture for BA.1 (Omicron) with the Spike R346K mutation. That mutation helps with immunity escape.
This combination was recently identified as a new sub-lineage BA.1.1, but that will take some time to filter through to databases and websites.
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The global analysis (above) of BA.1 with the Spike R346K mutation shows it's frequency was low, but has been steadily increasing (as a proportion of all BA.1 samples).
In the United Kingdom, the frequency of BA.1 with the Spike R346K mutation has been steadily growing, recently at ~25% (of all BA.1 samples).