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The wait for a remedy against Covid 19 could not be more feverish. But in the midst of undoubted successes (such as those of vaccines that are changing the evolution of the pandemic in Western countries), however, there is no shortage of disappointments.
Sometimes unexpected: a good example is that ofivermectina, a widespread pesticide that for several months has been grinding data, and consensus, as a potential early treatment for patients infected with Sars-Cov-2, only to be finally rejected by science.
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