New paper (Harrington): Social Network Analysis of University COVID-19 Contact Tracing
New paper led by Kristin Harrington in Public Health: The Application of Social Network Analysis to Examine COVID-19 Contact Tracing Networks in a University Setting. This cohort study reconstructed contact networks from case investigation and contact tracing interviews during the Fall 2020 semester at a US university under hybrid learning. The analysis identified 441 COVID-19 cases, 1121 close contacts, and 1206 links, with a mean of 2.9 direct contacts per person. The overall secondary attack rate (SAR) was 9.7% (50/518), and contacts of symptomatic cases had a higher SAR than contacts of asymptomatic cases (11.8% versus 4.9%; p = 0.015). Networks were minimally clustered, suggesting that campus transmission may differ from other settings.
