Yes, it does take time, but that is no reason for anyone to rush to judgement. One might argue, and have argued, that rush to judgement is why we are seeing mask mandates.you do understand that the study @ChiefWB posted above is also pre-print and not peer reviewed, right?
peer review takes months, studies are being released almost daily. a vast majority of the peer reviewed studies are based on data collected back in the early days of COVID.
take a peek at the components of the study, is it observational or randomized control? what regression was applied etc.
Unfortunately, a significant number of scientific studies are unreliable, for a variety of reasons - some simple and some complex - and when the outcomes of a study stand alone, it should be heavily scrutinized. Like you said, COVID studies are being released daily, and in time we will see lots of studies that support and/or refute certain evidence. That's one of the nice things about this global response - outcomes and confirmations have come quicker.
But the scientific method and other forms of validation are no less important in a time of crisis.
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