50% – 75% of cases of Covid-19 are asymptomatic

Re:50% – 75% of cases of Covid-19 are asymptomatic by confeit on Tuesday March 17, 2020 @03:02AM (#22602458)

Thanks, makes sense. Iceland also did voluntary testing and then estimated 1% of their population is infected. I doubt 1% is even showing mild symptoms. Remains the significance of asymptomatic spread. If someone does not cough or sneeze, are they shedding enough to be a formidable source of contagion?