As part of the study, “1174 close contacts of the asymptomatic positive cases were traced.”
And, just as any honest expert would have predicted, the percentage who contracted the virus is so negligible that it doesn’t warrant worrying over.
It was zero. Out of almost 1200 people who had close contact with an asymptomatic person infected with SARS-CoV-2, not a single one caught the virus
Is that negligible enough for you?