Alliance for Pandemic Preparedness

October 27, 2020

Transmission of COVID-19 in the State of Georgia United States Spatiotemporal Variation and Impact of Social Distancing

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[Pre-print, not peer reviewed] COVID-19 transmission patterns in the state of Georgia evolved over time, including a contraction of the serial interval between cases and a downward shift in the age of index cases. Data from 4,080 transmission pairs show that the serial interval decreased from 6.0 days in February-April to 4.4 days in June-July. The age range contributing most to the spread of SARS-CoV-2 shifted from ages 40-70 years in February-April to 20-50 years old in June-July. Two distinct waves separated by a shelter-in-place period were identified, suggesting that measures were not long enough to suppress COVID-19 transmission in areas with high transmission, such as densely populated areas and areas near interstate highways.

Wang et al. (Oct 26, 2020). Transmission of COVID-19 in the State of Georgia United States Spatiotemporal Variation and Impact of Social Distancing. Pre-print downloaded Oct 27 from https://doi.org/10.1101/2020.10.22.20217661