I have volunteered to present this week's NSW Health Surveillance Report up to 19 December. https://www.health.nsw.gov.au/Infectious/covid-19/Documents/covid-19-surveillance-report-20201219.pdf

This is the first epi report covering the NB cluster. 2/3 cases were in iso by symptom onset.

Good to see most people in isolation and tested by symptom onset. Only 6 people hadn't entered iso by 3 days of symptoms. The numbers suggest the cluster was caught at the right time.

Big increase in testing to go with increase in local cases.

Peak of this cluster is higher than Crossroads/Thai Rock but also shorter. We will see how the tail tracks.

Hoo boy this is gonna look like a climate change graph next week.

A positivity rate the rest of the world envies.

Incredible work by Northern Sydney.

Increased cases = increased testing. Northern Beaches off the charts but increases from all NS LGAs

Increased testing for adults, not so much for school aged children (for obvious reasons).

Everything here linked to a known cluster bar the driver transporting flight crew (which is genomically unlinked).

Vast majority of local cases (even now) linked to Northern Sydney). Even today, only 2 active cases out of Greater Sydney.

The Juicy Part. I hadn't heard much about the takeway shop (I'm guessing it's in Avalon?) but I know the gym cases are from before the main Avalon events.

So yes there are two superspread events. 20 linked to RSL, 25 linked to Bowlo, and 8 who went to both events.

Congrats to @fictillius for picking out that that cases were caught before symptoms.

Release the poo tests! Find those bums! We can see positive sewage at some Northern Suburbs areas which has only recently tested positive.

No real change in overseas cases. Besides issues of complacency in NSW HQ, maybe three breaches in a month is just bad luck.

Thanks Trump, Boris and Modi!

Notable increase in positivity recently.

We've eradicated the flu

Evidence we've eradicated flu? Seasonal hospitalisations flatlined.

more evidence

13% of Northern Beaches LGA people have been tested in the last week.