It’s not really his solution though is it? WHO has been urging governments to “test test test” for months with the same argument. In fact, the UK government is currently being criticised for not testing enough. Other countries that test more have shown a lower death rate (Germany at one point, not sure of the figures today) at odds with neighbouring states. Between lockdown and waiting for a vaccine, this is the only other thing that’s been suggested that makes sense. It’s not like the author is recommending injections of bleach.