Given the results from 2020, guess they were wrong.
The results from 2020 were, well, less than stellar. There is example after example after example after example of masks "working"... until they don't.
So I'm curious; could you post the evidence that you believe shows masking was effective?
What other "systematic review" of 2020 flu case numbers would you prefer?
Not sure why "systematic review" is in quotes. The CDC did a systematic review of the effect of masking on the transmission of influenza, studying 10 RCT's on the topic and concluding that masking had no significant effect on the transmission of the flu.
I'll anxiously await your results. In the mean time, though, are we just supposed to ignore the massive reduction in flu numbers when mask wearing was prevalent?
Are we likewise supposed to ignore that flu numbers are down EVERYWHERE, even in places where mask wearing was NOT prevalent? Anyone remember Sweden, where they took a much more relaxed approach and did not mandate masks and remained largely open for business? Same results;
Are we supposed to ignore that flu numbers were down EVEN BEFORE it was recommended for people to start wearing masks and while public health in the US was recommending AGAINST their use?
So the idea that masking was the
cause of reduced influenza cases is not supported by the data. As you an see from the graphs above, flu cases declined before masks were in widespread use, and at the same rate regardless of the rate of mask usage.
So perhaps there is another explanation. Perhaps viral interference is playing a much larger role. During the H1N1 flu pandemic, France never saw large case numbers. Why? They hypothesize because the common cold deflected it;
A viral mystery: Can one infection prevent another? - STAT
The study in question was of flu infections, not sure why you're talking about covid numbers.
You're claiming that masking and social distancing worked to reduce the flu. I'm showing you that systematic reviews have shown that not to be the case.
While COVID is not the flu, they are both viruses, and what we learn from one virus is often instructional of another, especially in terms of how they are transmitted.
Looking at covid case counts is a red herring
No it's not. It's the exact methodology of all of the observational studies throughout the pandemic. The studies look at masking, look at case counts, see them decline, and conclude "MUST BE MASKS!" with no shred of evidence whatsoever. Of course, they never conduct a study during times of case increase, because that would invalidate their observational findings.
Here's yet another example of the CDC's study of masking in Delaware that cherry-picked the timeframe they studied. And once again, you can see the intentional selection of data that supports the desired conclusion. They ignore the data that shows a roughly 1,600% increase (not a typo) in case counts from the end of their study period;
- we don't know what would have happened if people weren't wearing masks during that time.
And there it is; the absolutely worst way to analyze something. "We don't know what would have happened if people weren't wearing masks, so they must have worked" is probably the most unscientific and bizarre thing to come out of this pandemic. What if, instead of convincing everyone that a piece of cloth across your face was the panacea we've waited for all our lives to crush viruses, we actually stuck with proven science and focused our protection on the elderly and most vulnerable? We don't know what would have happened if we had followed our pandemic preparedness plans because we didn't. We did the great masking and lockdown experiment of 2020 instead, and claimed it was a success.
Posting a pretty multi-colored pyramid graphic doesn't change that fact.
You sure do seem to have a disdain for science. That "pretty multi-colored pyramid graphic" is how we weigh the quality of evidence in science. That's not really up for debate. If you don't know what that "pretty multi-colored pyramid graphic" is, I would suggest you Google
evidence pyramid.