debo:

Fred99:

 

So they're doing genome testing on retained samples from positive cases picked up in quarantine in attempt to match with the virus in the cluster.  So far no match found, but if and when there is a match, then you've probably found the index case.  If you don't find a match after testing all samples, then that strengthens the case that the virus got in through an undectected case through quarantine, or on contaminated chilled/frozen cargo.

 

 

 

 

 

It's weird. They had mapped out the genome of the new cases by yesterday but have not ruled out a connection yet. It sounds like they have waited for an outbreak to occur before they started mapping out all the previous cases. Very reactionary.
However, once mapped out, there is another interesting result they case look for. What if some of the previous cases have identical genomes but the returnees came from different places? It may indicate that people have been infected at the quarantine facilities.

I guess that's possible - or they arrived on the same flights after transiting.

As per @batman post above, we're now up to 4 or 5 positive tests after arrival at destination for people leaving NZ.  Quite a lot of positives tests on day 12 for arrivals who tested negative on day 3.  I think international air travel risk is vastly underestimated / talked down by the industry.  You want to share a tiny dunny with dozens of other folks from wherever in the middle of a global pandemic - or hold on for 12 hours?