That's Three

In addition to the Santa Clara finding and the Germany finding, now Los Angeles also has data that suggests COVID is more widespead (without symptoms) that commonly understood.

While all sorts of REALLY SMART PEOPLE are contorting themselves into the position that the Santa Clara dad is flawed -- the presence of three separate studies finding very similar results suggests there may be more to this. Especially if you add it to the Princess Cruise Ship situation where only a small percent of exposed people showed symptoms.