Confirming that 90% death rate is observable. We need to confirm the mortality rate (derived from cases where patients received clinical care) this will give an early indication of virulence of this strain. Which due to the sheer numbers involved in this outbreak suggests it is different form previous strains.
Already done.
The mortality rate (defined as outcomes rather than a snapshot of statistics) is essentially 100%. That is, only 1 person of 255 has survived to date. All others have died within 10 days. Existing active cases simply have not died yet.
We have confirmed this by monitoring the reports over the last 6 weeks. There has only been the one exception.