I was a bit surprised the CDC dropped the isolation period to 5 days. Apparently that was at the behest of the airlines, and
completely bereft of any scientific basis.
Link: "
Flight attendants fume as CDC gives airlines what they want on quarantine change"
Link: "
The very bad day at the CDC" - Eric Topol
"
There were serious problems about the new 5-day isolation period.
First,
there are no data or evidence to back it up. Yes, we?re facing an Omicron onslaught of cases and it would be useful to come up with a strategy to avoid a mass loss of functionality among our workforce and the on-the-go public, no less in the midst of the holiday season. But that doesn?t justify issuing a vacuous guideline.
Second, there was no mention of using a test, to confirm that the isolated individual is now OK to circulate, that there is no indication of infectiousness. That could be done via a rapid antigen test, which denotes infectiousness, c
arries some reduced sensitivity with Omicron, or via a PCR. The cycle threshold value of a PCR test is also indicative of infectiousness; the lower it is, the more likely potential for spread. Either of these tests would be far better than no test to justify a reduced isolation time in any individual.
Third, there are no data for Omicron?s clearance time. We know the characteristics of shedding and average time it takes for clearance of the virus for Delta and preceding variants, but to date we have not seen any such data for Omicron kinetics. W
ith the Hong Kong report of 70-fold copies of the virus in the upper airway for Omicron versus Delta and prior variants, there is no certainty yet that Omicron?s clearance is fast.
I suppose none of this
should surprise me... the US and state governments now exist solely to shovel money to corporations, and so it is completely unable to function in any other capacity.
This is the end result of Reagan's stupid "9 scariest words: I'm from the government and I'm here to help" quote. We now have a government that not only does not help, but cannot act in any capacity, other than funneling money to special/corporate interests.
If we needed the government to act - in any capacity other than that - i.e. block all flights from Country X, or quarantine this group of people, it cannot do that.