There's a group or family of coronaviruses who DO show this, BUT, a comparative analysis of their r-knot # & incubation periods must be done, to know.
When, precisely, did Fauci, Birx, Gates, & the WHO, 1st discover or learn of this virus' R-knot value [2-2.5] & incubation period (Asymptomatic Period) - and - how were you advised at that time as a result of that knowledge?