A Look at DESE's Cited Sources: Footnote #68 and #74 - Household secondary attack rate of COVID-19 and associated determinants

DESE Claim 1 (footnote #68): "In another study from China, exposed children less than 19 years of age became infected at a rate of 5.3%, vs. 13.7% for 20-59 and 17.7% for 60+."

DESE Claim 2 (footnote #74): "In a study from China, only 5% of household clusters were found to have a child <20 as the index patient"

Cited Source: Jing, Q. L., Liu, M. J., Yuan, J., Zhang, Z. B., Zhang, A. R., Dean, N. E., ... & Lu, Y. (2020). Household secondary attack rate of COVID-19 and associated determinants. medRxiv. Available at https://www.medrxiv.org/content/10.1101/2020.04.11.20056010v1

Peer Reviewed?: No - preprint

Study Methodology: " Based on a comprehensive contact-tracing dataset from Guangzhou, we estimated

both the population-level effective reproductive number and individual-level secondary attack

rate (SAR) in the household setting."

Notes: This study studies transmission in the household setting. "Case finding and isolation alone may be inadequate to contain the pandemic and need to be used in conjunction with heightened restriction of human movement as implemented in Guangzhou." There were fewer household secondary cases in young people.

Supports DESE Claim 1?: Yes, for household exposed children.

Supports DESE Claim 2?: Yes