... In the year since then, the evidence has accumulated that a significant number...
An equal number of studies resulted in numbers ranging from zero to negligible.
But the real question behind this statement is the one Alan Klein would raise, and rightfully so: science flip-flopping. Yeah, yeah, I know, science is a never-ending process of expanding knowledge in light of new evidence, blah, blah, blah.
The next question is then: if that was the state of the art science a year ago, why were the healthy quarantined and locked down, instead of just the sick? The explanation then was that the "healthy" may not be healthy at all, just asymptomatic. See the contradiction?
P.S. Between "this time it is different" (which failed every time it was used as an excuse) and "
nihil novi sub sole," guess which one I believe more?