You know that WHO news about no transmission from asymptomatic patients? This is what my doc/researcher friend explained about it: "This is what you need to know: Someone who has no symptoms can be highly contagious." /1
"A subset of people who have no symptoms; ie those who never develop symptoms, appear to not be contagious. Those who are presymptomatic— who go on to develop symptoms— can be highly contagious in the days prior to developing symptoms." /2
"There is absolutely no way for any of us to tell the difference between these people prospectively. Hence, we are at risk from asymptomatic people." 3/
