2024-01-04 15:40:09
There is news that seems like it cannot be, that if everyone does something in one way it will be because that is the right thing to do. But the scientific evidence They are stubborn, and it is not because the majority does something that they have chosen the best.
It is assumed that in the area medical and healthcare Decisions are made if they are well scientifically documented. But this is not always the case. He fear He is also a bad advisor, especially in epidemics, pandemics and triplets…
The Cochrane Review It is one of the “bibles” of scientific evidence. Well, it offers a well-updated work to evaluate the effectiveness of physical interventions to interrupt or reduce the spread of respiratory viruses treble.
It is a systematic review of the scientific evidence on the topic, masks included. And when I refer in this text to that protection measure, I do so about those that have been studied, the so-called medical-surgicalwhich on the other hand are the most used, I suppose because they are the cheapest.
It is an extensive work, but what interests me is the specific issue of masks, because almost everyone puts them on… and they threaten us if we don’t, but let’s see what Cochcrane concludes:
Medical/surgical masks compared to no mask
The review included 12 trials that compared medical/surgical masks versus no mask to prevent spread of viral respiratory diseases (two trials with healthcare workers and ten in the population).
People wearing masks “probably causes little or no difference in the outcome of the disease similar to flu and COVID-19 in comparison with not wearing masks«.
Furthermore, the use of masks (always medical-surgical ones) in the community “probably makes little or no difference in the outcome of flu and Covid, confirmed by laboratorycompared to not wearing masks” (six trials with 13,919 participants).
And something important, the Damage was rarely measured and were poorly reported.
Related
#Masks #medicalsurgical #effect.. #wearing