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https://www.cidrap.umn.edu/covid-19/more-70-us-household-covid-spread-started-child-study-suggests “Among 166,170 households with both adult and child participants (51.9% of households with multiple participants), there were 516,159 participants, 51.4% of whom were children. In these #households, 38,787 #transmissions occurred, 40.8% of which were child to child, 29.6% child to adult, 20.3% adult to child, and 9.3% adult to adult. The median serial interval between the index and secondary cases was 2 days.” #COVID #children
“Of all households transmissions, 70.4% began with a child, with the proportion fluctuating weekly between 36.9% and 87.5%. Pediatric transmissions reached a high of 68.4% the week of September 27, 2020, and fell to a low of 41.7% the week of December 27, 2020 (0.61 times less frequent). The next high was 82.0% the week of May 23, 2021, which stayed stable until June 27 (81.4%) and then declined to 62.5% by August 8 (0.77 times less frequent).”
“Children aged 8 years and younger were more likely to be the source of transmission than those aged 9 to 17 (7.6% vs 5.8%). During most of the pandemic, the proportion of transmission from children was negatively correlated with new community #COVID19 cases.”