Here is a portion of an email I sent to a friend this morning: I've been trying to find out for almost two years now what the asymptomatic rate for COVID-19 is.  These are the individuals who are going around innocently infecting people.  The CDC and Fauci seem to think 40-45%.  I have read reports ranging from 20% to 90%.  I think this figure is closer to 90% than 45%.  When China shut down Shanghai these past two weeks they tested everyone.   Here is an article indicating that the asymptomatic rate is 97% !!! Shanghai counted more than 20,000 new cases on April 7, but the asymptomatic rate has stood at around 97%, far higher than anywhere else in the world, where it has been closer to 50%. The resultant sense is that this 97% rate is so high because those suffering from only mild COVID symptoms were placed into that category.  This Omicron BA.2 subvariant is relatively benign compared to Delta and other wave-producers.  But what, then, what is the true asymptomatic rate??? If i