Volume 31, Number 1—January 2025
Research
Social Contact Patterns and Age Mixing before and during COVID-19 Pandemic, Greece, January 2020–October 2021
Figure 3

Figure 3. Age-specific contact matrices of all contacts in study of social contact patterns and age mixing before and during COVID-19 pandemic, Greece, January 2020–October 2021. A) January 2020; B) March–April 2020; C) September 2020; D) November–December 2020; E) February 2021; F) April 2021; G) May–June 2021; H) September–October 2021. Each cell represents the average daily number of reported contacts, stratified by the age group of the participants and their corresponding contacts. Gradient palettes were used to color contact matrices (orange indicates lockdown periods, blue indicates prepandemic period and periods with relaxed measures).