So, why is it important if people in quarantine get tested or not, if two weeks is enough?
Ah, well that is my point.
If the goal of quarantine is to prevent infection then testing isn't important. The two weeks of quarantine is.
So to be clear I am not saying that testing of those in quarantine does not have uses, and I am also not against doing these tests as I think it can add to the knowledge pool. I am just saying that on the evidence available to date testing everyone in quarantine will not assist in preventing new cases of Covid 19 in the general Australian public.
A number are stating or implying that it is generating more cases. But there is no evidence of this.
There are known cases of people who returned to Australia and breached self-isolation that was operating early on and infected people. So we definitely know that returned travellers within 14 days can transmit the virus. But there are no known cases of someone completing a 14 day hotel quarantine infecting anyone.
This despite tens of thousands now having gone through hotel quarantine.
So if it really was a high risk surely by now at least one close contact of all of the people who have been released from hotel quarantine would have shown up as a Covid 19 positive case? Now some will say, ah but some unknown random may have been infected. And yes they may, but is it really plausible that some randoms have been infected when there is probably a pool of over one hundred thousand close contacts with not one case having turned up from that pool? Remember too that genomic testing is used to help identify links.
Early on remember that partners of returning travellers were getting infected. Again not one case of this from someone who has been through hotel quarantine.
Also note that hotel quarantine that we are talking about is for people coming into Australia. So in most cases people would have been infected prior to getting on the plane or disembarking from the ship.
Secondly a number of studies, the most recent from Singapore, indicate that viral load is earliest early on and normally that beyond 14 days from becoming infected people are not likely to be infectious even if they still test positive. So if people are not exhibiting symptoms at the end of a 14 day quarantine it is most unlikely that they are infectious.
Murphy again today re-affirmed that a 14 days quarantine was the appropriate duration.
Now what more testing can do is supply more information on the virus, and their are benefits from that. It could even lead to a methodology of where the 14 day quarantine period could be reduced for some people. Or conversely increased in some cases.
Speaking after today's meeting of National Cabinet, he said testing of people in hotel quarantine would be ramped up.
But he also indicated that could lead to quarantine being changed in some circumstances.
"We're seeing imported cases in hotel quarantine from a different range of countries now," he said.
"We are going to start testing people on entry to quarantine and testing people before they leave quarantine to see whether a testing regimen might help in the future to modify that quarantine in certain circumstances."
All those in hotel quarantine will be tested within 48 hours of arriving and again on day 10 to 12 of their two-week stay.
Now hotel quarantine needs to be conducted properly, and one contractor at two hotels had staff that did not follow protocols correctly. So how hotel quarantine is being run needs to follow the guidelines.
In terms of controlling community spread I think that testing of the hotel quarantined will do little and probably nothing, and that there are many other areas to be focused on that will have more impact on community spread. The infected I fear are not the people in hotel quarantine, it is the ones wandering about in our community and moreso the ones who are not serious about behaviours to minimise spread.