So, to echo your question: Does it work? Who knows? Given that we apparently have as much of a "COVID" problem now as we did a year ago, I'd be inclined to say no. But then, I've never believed "COVID" was anything more than a bad flu relabeled and propagandized beyond belief.
Thanks Sicon.
And with the information being suppressed there is no way to learn from mistakes. The government nitwits double down on their failed policies.