The medical officers have said the genomic testing shows the now subsidising virus outbreak in Melbourne had a different sequence to the outbreak in March, which was then carried to the Crossroads Hotel outbreak in Sydney, so the virus has already mutated.
In the USA the testing found both Chinese and Italian strains of the virus, traced back to those countries.
There are millions of known Coronaviruses in the world.
Unfortunately, it's only a matter of time until there is another outbreak somewhere in this country. Melbourne won't be the last.
BTW this story quotes Qld CMO Dr Jeanette Young confirming there was a Byron Bay outbreak over a month ago, as I posted at the time, but sewerage testing says it has passed.
I am told it started with a couple who caught the virus at a funeral in Sydney, went back to Byron, got sick and ended up in Lismore Base Hospital, but have since recovered.
So that's why Qld excluded Byron and Lismore from the border zone until there were 28 days without community transmission, until it has now passed.
It's also interesting that Qld has access to sewerage testing in NSW, as well as Qld. They claim the sewerage testing can find one case of a person shedding the virus in 10,000 residents, so it's very sensitive.
Queensland border opens to Northern New South Wales but long traffic delays expected after ADF withdrawal
Queensland border opens to Northern New South Wales but long traffic delays expected after ADF withdrawal - ABC News
BTW here's the latest Qld Border Restrictions Direction (15), which applies from today.
Border restrictions | Health and wellbeing | Queensland Government