-Asymptomatic = No symptoms. None. Zero.
-But what if they had a cough? That is not asymptomatic.
-What if it is just a small cough? That is not asymptomatic
-What if they had a cough and now it's gone? Then they were symptomatic and now are asymptomatic.
-Can these people continue to shed virus after symptoms resolve? Yes.
-A lot of virus? Meh.
-For how long? Unclear, but sometimes for a few days as in other resp infections.
-Can asymptomatic people have evidence of this novel #coronavirus? It appears there are some cases of this.
-Do asymptomatic people significantly contribute to driving epidemics? No.
-Could it still be possible for truly asymptomatic to transmit infection? Yes but likely rare.