Here is another anomaly with the new Korean study (wwwnc.cdc.gov/eid/article/26…): Why is the gap between household and non-household contacts for the 10-19 group? Also, why is the bump in the almost linear increase in the transmission risk? (1/x) @NahasNewman @boriquagato @kylamb8 
One plausible explanation: The child gets sick with cold/flu/etc. and gets tested. Also happens to be asymptomatic COVID after getting it from another asymptomatic family member. Then they test others in the family and find that the child "infected" them. (2/x)
Especially given the low number of index cases in this age group, such effects might have significantly influenced the results. Remember, this age group is the 2.2% of all possible index cases, which in itself is evidence of a much smaller risk of transmission from kids. (3/3)
Also (4/3):
And: (5/3)
