Author: Joshua A Salomon
Title: Defining high-value information for COVID-19 decision-making Document date: 2020_4_8
ID: iymhykq8_33
Snippet: Very limited primary data exists on age-stratified contacts in the US. Therefore, we rely on methods that project contact rates derived from surveys in other contexts and US demographics. We use the age-structured contact matrix for the US estimated by Prem et al. (2017) , which was derived by projecting the POLYMOD Mossong et al. (2008 Mossong et al. ( , 2017 survey data to US demographics Prem et al. (2017) . Since we are interested in 3 broad .....
Document: Very limited primary data exists on age-stratified contacts in the US. Therefore, we rely on methods that project contact rates derived from surveys in other contexts and US demographics. We use the age-structured contact matrix for the US estimated by Prem et al. (2017) , which was derived by projecting the POLYMOD Mossong et al. (2008 Mossong et al. ( , 2017 survey data to US demographics Prem et al. (2017) . Since we are interested in 3 broad age-classes, we bin the projected contacts according to US Census Bureau age-distribution estimates for 2018 (United States Census Bureau (2019)). This provided the following baseline contact matrix, where v ij is the average number of daily contacts with individuals in group j per person in group i (i.e., v 12 represents the number of daily contacts where an infectious individual in group 2 could infect a susceptible individual in group 1):
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